The short version

• Pour = for, a PLANNED or INTENDED future duration — the length of time you expect something to last.
• Pendant = for/during, a duration that’s already happening, already finished, or being described as a fact rather than a plan.

Ask whether you’re stating an intention (“I’m going for two weeks”) or describing a fact about a duration (“I lived there for two years”). Intentions take pour; facts take pendant.

When to use pour

• A planned trip duration: Je pars pour deux semaines. (I’m leaving for two weeks — the planned length.)
• An announced intended stay: On va à Rome pour un mois. (We’re going to Rome for a month.)
• Used with verbs of departure or arrival, projecting forward: Il vient pour trois jours. (He’s coming for three days.)
• Rare outside travel/stay contexts — pour’s duration use is fairly narrow.
• Announcing a work assignment length: Je suis engagé pour six mois. (I’m hired for six months.)

When to use pendant

• A completed duration: J’ai vécu à Berlin pendant cinq ans. (I lived in Berlin for five years.)
• An ongoing duration described as fact: Il travaille pendant huit heures par jour. (He works for eight hours a day.)
• During a specific period: Pendant l’été, il fait chaud. (During summer, it’s hot.)
• The default, general-purpose choice for “for” in most non-travel-plan contexts.
• Reporting how long a past event lasted: La réunion a duré pendant deux heures. (The meeting lasted for two hours.)

Quick chart

Why pour has such a narrow lane

It surprises a lot of learners that pour, despite being one of the most common French prepositions overall, has a genuinely narrow role when it comes to duration specifically. Outside of announcing how long a trip or stay is intended to last, pour essentially doesn’t compete with pendant at all — you wouldn’t say j’ai étudié pour trois heures to mean “I studied for three hours” as a simple fact; that has to be pendant trois heures. The pour-duration construction survives almost entirely in this one specific pattern: a verb of movement or stay (partir, aller, venir, rester) followed by pour and a length of time, framing that length as the traveler’s stated plan or intention at the moment of departure, independent of whether the trip actually ends up lasting that long. If your friend says je pars pour deux semaines and then extends the trip to three, the original pour statement was still grammatically correct — it captured the plan at the time, not a guaranteed outcome. This is different from most other uses of pour (purpose, recipient, exchange), which are far broader; the duration sense is the outlier, tightly scoped to travel and stay announcements.

Mistakes learners make

• Using pour for a general fact about duration outside travel contexts: j’ai travaillé pour cinq heures should be j’ai travaillé pendant cinq heures.
• Using pendant to announce a planned trip length: je pars pendant deux semaines sounds like a report of fact rather than an intention — pour fits the announcing-a-plan context better.
• Forgetting that pour’s duration sense is narrow and trying to extend it to any “for” + time expression, when pendant is almost always the safer general default.
• Confusing this pour with its far more common meanings (purpose, recipient) and assuming duration is its primary use — it’s actually a minor, specific one.
• Assuming a pour-announced duration guarantees the actual outcome, when it only reports the plan at the time it was stated.

Frequently asked questions

What’s the difference between pour and pendant for duration?

Pour is used specifically to announce a planned or intended duration, usually with travel (je pars pour un mois). Pendant is the general-purpose word for “for/during” a duration, whether past, ongoing, or habitual.

Do you say je vais à Paris pour trois jours or pendant trois jours?

Pour trois jours, since this is announcing the planned length of a trip. Pendant would sound more like a factual report after the fact rather than a stated intention.

Can pour be used outside of travel contexts for duration?

Rarely. Pour’s duration sense is mostly confined to announcing travel or stay plans; for general statements about how long something lasted, pendant is almost always the correct choice.

What’s the most common way to say “for” with a duration in French?

Pendant, by far. It covers completed durations, ongoing habitual durations, and specific periods, while pour is reserved for the narrower planned-trip-length use.

Is it correct to say j’ai vécu ici pour cinq ans?

No, that should be j’ai vécu ici pendant cinq ans. Pour doesn’t fit here because this is a factual statement about a completed duration, not an announced plan.

Does pour always relate to time?

No — pour’s time/duration use is actually one of its rarer functions. Its far more common uses are purpose (“in order to”), recipient (“for you”), and exchange, covered separately from time expressions.

Does pour work for a job assignment length?

Yes. Je suis engagé pour six mois (I’m hired for six months) uses pour the same way it’s used for travel — announcing a stated, intended length rather than reporting a completed fact.

This narrow pour-versus-pendant distinction is exactly the kind of nuance that separates a fluent speaker from a careful translator. corrector.co’s free French checker flags pour used outside its narrow duration lane.

Next: Depuis vs Pendant vs Il y a · An vs Année

The short version

• Traer means to bring — movement of an object toward the speaker’s or listener’s current location.
• Llevar means to take (or carry) — movement of an object away from the current location, and it also means “to wear.”

When to use traer

• Bringing something toward where you are: Trae el libro, por favor. (Bring the book, please — to where I am.) ¿Puedes traerme agua? (Can you bring me water?)
• Someone bringing something to a shared location: ¿Qué traes a la fiesta? (What are you bringing to the party? — asked when both people will be at that party.)

When to use llevar

• Taking something away from the current location: Voy a llevar el paraguas. (I’m going to take the umbrella — away from here.) Llévate estos papeles a la oficina. (Take these papers to the office.)
• Carrying something in general: Lleva una mochila pesada. (He’s carrying a heavy backpack.)
• Wearing clothing — a completely separate but very common meaning: Lleva una chaqueta roja. (She’s wearing a red jacket.) Siempre lleva gafas de sol. (He always wears sunglasses.)

Quick chart

The same rule as ir/venir, just for things

If someone invites you to a party and asks what you’ll bring, they say ¿Qué traes?, because the party is where they already are (or will be) — the object is moving toward that shared location. If you’re telling a friend you’re taking chips to a party neither of you is at yet, from your own house, you’d say Voy a llevar papas fritas. The logic is identical to voy/vengo: it all depends on where the object ends up relative to the person speaking or listening.

Idiomatic reach: irse de and vámonos

Two forms worth knowing on top of the base ir/venir rule. Irse de means to leave a place or leave on a trip: Se fue de viaje. (He went off on a trip.) Se fueron de la fiesta temprano. (They left the party early.) And the command form vámonos (let’s go, informal, with the reflexive attached) is one of the most common phrases in everyday spoken Spanish, used constantly to round people up and head out — technically it’s the “nosotros” command of irse, but it’s worth simply memorizing as a fixed expression rather than reconstructing it from grammar rules each time you need it.

Llevar meaning “it takes” — a third meaning worth knowing

Beyond “to take” and “to wear,” llevar has a third common use that has nothing to do with direction at all: describing how long something takes, or how long a trip or task requires. Me lleva una hora ir al trabajo. (It takes me an hour to get to work.) ¿Cuánto lleva preparar esta receta? (How long does this recipe take to prepare?) This use works a bit like the gustar construction, where the thing taking time is closer to the subject and the person is an indirect object — worth flagging separately since it’s easy to miss if you’ve only learned llevar as “to take/carry.”

Traer cola and other fixed expressions

Both verbs anchor a handful of idioms worth recognizing even though they don’t translate literally. Traer cola (literally “to bring a tail”) means an action will have consequences, usually negative ones: Eso va a traer cola. (That’s going to cause problems down the line.) Llevar la voz cantante means to be the one in charge or calling the shots. Llevarse un susto means to get a scare. None of these follow the plain bring/take logic — they’re set phrases built on traer and llevar’s core meanings, and recognizing them as fixed units saves you from trying to parse them word by word.

Regional word choice: traer/llevar vs alternatives

In much of Latin America you’ll also hear llevar extended to contexts where some Spain speakers might phrase things differently, and vocabulary around carrying and transporting shifts a bit by country — for instance, cargar overlaps with llevar in parts of Mexico and Central America for physically carrying something heavy. None of this changes the core traer/llevar rule; it’s just a reminder that Spanish vocabulary, like English vocabulary, has regional texture layered on top of the grammar, and hearing a slightly different word for a similar idea doesn’t mean the traer/llevar logic you’ve learned is wrong.

Traiga vs traigo: watch the irregular yo form

Both verbs are irregular in the “yo” form of the present tense, which trips learners up because everything else conjugates normally. It’s traigo (I bring), not traeo, and the command form built off that same irregular stem is traiga (bring, formal command) or trae (informal). Llevar, by contrast, is fully regular: llevo, llevas, lleva, following the standard -ar pattern with no surprises. Since the two verbs are so often taught side by side, it’s easy to assume both share the same irregularity — worth double-checking traigo specifically, since that’s the form most likely to slip.

Mistakes learners make

• Using traer for something moving away from the current location: Voy a traer el paraguas a la oficina (when you’re not currently at the office) should usually be llevar, since you’re taking it away from where you are now.
• Forgetting llevar’s second meaning: learners sometimes reach for a made-up phrase to say “wearing” when llevar already covers it perfectly — Lleva gafas simply means “She’s wearing glasses.”
• Overthinking simple cases: if in doubt, ask whether the object is heading toward you/the listener (traer) or away (llevar), the same test as ir/venir.
• Not recognizing llevar’s “how long something takes” meaning, and reaching for a more roundabout phrase when me lleva una hora already says it cleanly.
• Conjugating traer as regular: it’s traigo, not traeo, in the yo form.

Frequently asked questions

What’s the difference between traer and llevar?

Traer means to bring something toward the speaker’s or listener’s location. Llevar means to take something away from the current location, and separately, it means to wear.

Do traer and llevar work like ir and venir?

Yes, exactly the same logic — direction relative to the speaker or listener decides which one you use.

Can llevar mean “to wear”?

Yes, that’s one of its most common everyday uses: Llevo una camisa azul (I’m wearing a blue shirt).

Which one do you use when inviting someone to bring food to your party?

Traer, since the party is at your location: ¿Qué vas a traer?

What does “me lleva una hora” mean?

“It takes me an hour” — a third meaning of llevar, unrelated to bringing or taking objects, used for describing how long something takes.

Is llevarse the same as llevar?

Not quite — the reflexive llevarse often means “to take away” (with emphasis on removing something) or, with bien/mal, “to get along”: se llevan bien (they get along well).

Check your Spanish before you send it

Traer/llevar mix-ups are easy to make on the fly. corrector.co’s free Spanish checker catches them for you.

Next: Ir vs Venir · Por vs Para

The short version

• Depuis que = since, marking the STARTING POINT of an ongoing situation that continues to now.
• Pendant que = while, marking two SIMULTANEOUS ongoing actions happening at the same time.

If one event marks when something began and is still true, use depuis que. If two things are happening alongside each other in the same stretch of time, use pendant que.

When to use depuis que

• Marking the start of a continuing state: Depuis qu’elle habite ici, elle est plus heureuse. (Since she’s lived here, she’s happier.)
• An ongoing change triggered by a past event: Depuis que j’ai déménagé, je vois moins mes amis. (Since I moved, I see my friends less.)
• Usually paired with a present tense in the main clause, mirroring plain depuis’s present-tense rule.
• Depuis qu’il est parti, la maison est calme. (Since he left, the house has been quiet.)
• Marking an ongoing negative state: Depuis que j’ai arrêté le café, je dors mieux. (Since I quit coffee, I sleep better.)

When to use pendant que

• Two simultaneous ongoing actions: Pendant que je cuisine, tu peux mettre la table. (While I cook, you can set the table.)
• Background action interrupted: Pendant qu’il dormait, le téléphone a sonné. (While he was sleeping, the phone rang.)
• Both clauses describe things happening at the same time, not one triggering the other.
• Pendant qu’elle travaillait, il faisait les courses. (While she worked, he did the shopping.)
• Two ongoing habits that overlap: Pendant que les enfants jouent, les parents discutent. (While the kids play, the parents chat.)

Quick chart

Telling them apart when a sentence could look like either

The confusion usually shows up in sentences where both a starting point and simultaneity seem plausible at first glance. Take “Since he’s been living alone, he cooks every night” — this is depuis que, because the living-alone situation marks a starting point for an ongoing change (he now cooks every night, a new pattern). Compare that to “While he lives alone, he cooks every night” — a much stranger sentence in English too, because it forces a purely simultaneous reading with no sense of a triggering change, which is what pendant que would demand. The clearest test: can you rephrase the sentence with “ever since” in English? If yes, you want depuis que. Can you rephrase it with “during the time that” or “at the same time as”? If yes, you want pendant que. Depuis que almost always implies some kind of change or new state that began at a point and is still ongoing; pendant que implies pure overlap in time with no implication that anything changed because of it.

Mistakes learners make

• Using pendant que when you mean a triggering starting point — pendant que doesn’t carry the “ever since” implication that depuis que does.
• Using depuis que for two actions that are simply happening at the same time with no ongoing-change relationship — that’s pendant que’s job.
• Forgetting depuis que often pairs with present tense for an ongoing result, the same rule that governs plain depuis.
• Confusing depuis que with depuis quand — the first introduces a clause, the second is a question phrase asking “since when.”
• Using pendant que for a permanent change instead of a genuinely simultaneous, ongoing pair of actions.

Frequently asked questions

What’s the difference between depuis que and pendant que?

Depuis que marks the starting point of an ongoing situation that continues to now. Pendant que marks two things happening simultaneously, with no implication of an ongoing change.

How do you say “since I moved here” in French?

Depuis que j’ai déménagé ici, typically followed by a present-tense main clause describing the ongoing result, like depuis que j’ai déménagé ici, je suis plus heureux.

Can pendant que describe an interruption?

Yes. Pendant qu’il dormait, le téléphone a sonné (while he was sleeping, the phone rang) uses pendant que for the ongoing background action interrupted by a sudden event.

Does depuis que always use the present tense?

Often, when describing a state still true now, mirroring plain depuis. But it can also appear with other tenses depending on when the ongoing result is set in the story.

What’s the difference between depuis que and depuis quand?

Depuis que introduces a clause marking a starting point (since I arrived). Depuis quand is a question phrase asking “since when” (depuis quand habites-tu ici?).

Is pendant que used for one-time simultaneous events?

Yes — it works for a background action happening while a specific event occurs, like pendant qu’il lisait, elle a préparé le dîner (while he was reading, she made dinner).

Can depuis que introduce a negative ongoing state?

Yes. Depuis que je n’ai plus de voiture, je marche beaucoup (since I no longer have a car, I walk a lot) marks a negative change that’s still true now, following the same structure as its positive counterparts.

These two clause connectors are a natural next step once depuis and pendant themselves feel comfortable. corrector.co’s free French checker flags tense mismatches after depuis que.

Next: Depuis vs Pendant vs Il y a · Passé Composé vs Imparfait

The short version

• Reflexive verbs (ending in -se in the infinitive) show that the subject is acting on itself, or mark a change of state — the moment something starts or stops.
• The non-reflexive version describes the same action done to someone or something else, or in a general, ongoing way.

Genuine reflexive actions

The most literal use: the subject does the action to themselves. Me lavo. (I wash myself.) Se viste. (He gets himself dressed.) Nos levantamos temprano. (We get (ourselves) up early.) Compare to the non-reflexive version, which needs a separate object: Lavo el carro. (I wash the car — someone/something else is receiving the action.)

Change of state: the trickier use

This is where most of the real confusion lives. Dormir means “to sleep” as an ongoing state. Dormirse means “to fall asleep” — the moment sleep begins. Dormí ocho horas (I slept eight hours) describes the duration. Me dormí a las once (I fell asleep at eleven) marks the specific moment it started.

Common pairs that shift meaning

• ir / irse — ir means to go (toward somewhere); irse means to leave, to go away from where you currently are. Voy al parque vs. Me voy. (I’m going to the park / I’m leaving.)
• dormir / dormirse — to sleep vs. to fall asleep.
• llevar / llevarse — to carry/wear vs. to take away, or (with bien) to get along: Se llevan bien. (They get along well.)
• comer / comerse — to eat vs. to eat something up entirely: Se comió todo el pastel. (He ate the whole cake, emphasizing completeness.)
• quedar / quedarse — to arrange to meet vs. to stay/remain: Quedamos a las cinco (we’re meeting at five) vs. Me quedo en casa (I’m staying home).

Quick chart

Conjugating a reflexive verb: levantarse

Reflexive verbs need a pronoun that changes with the subject, which is a separate thing to track beyond the verb ending itself. Here’s the full present-tense conjugation of levantarse (to get oneself up) as a model — the pattern is the same for any reflexive verb.

Reciprocal reflexives: when “each other” is hiding in the pronoun

There’s a second job the reflexive pronoun does beyond true reflexive action or change of state: expressing reciprocity, meaning “each other.” Se aman. (They love each other.) Nos escribimos todas las semanas. (We write to each other every week.) This only makes sense with a plural subject — one person can’t do something “to each other” alone — and context usually makes it obvious whether se aman means “they love themselves” (individually) or “they love each other,” though the reciprocal reading is far more common for a verb like amar used this way.

Acordarse de vs recordar: two ways to remember

One more pair worth knowing, since it’s really a reflexive-vs-nonreflexive choice hiding behind two different-looking verbs: acordarse de and recordar both mean “to remember,” but they’re built differently. Recordar works like a normal transitive verb, taking a direct object with no preposition: Recuerdo su nombre. (I remember his name.) Acordarse is reflexive and always needs “de” before what’s remembered: Me acuerdo de su nombre. Both sentences mean the same thing, but mixing the structures — Me acuerdo su nombre or Recuerdo de su nombre — is a common learner slip, since each verb has its own fixed grammatical pattern that doesn’t transfer to the other.

Mistakes learners make

• Dropping the reflexive pronoun on verbs where it changes the meaning: saying Duermo a las once when you mean “I fall asleep at eleven” actually says “I sleep at eleven,” which is a different claim — it should be Me duermo a las once.
• Adding reflexive pronouns where they’re not needed, out of overcorrection: not every verb has a meaningful reflexive form, so check before assuming.
• Forgetting the pronoun agrees with the subject: Yo se voy is wrong; it should be Yo me voy.
• Misreading a reciprocal se as a true reflexive, or vice versa, when context should make the intended meaning clear — pay attention to whether the subject is plural and whether “each other” makes more sense than “themselves.”

Frequently asked questions

What’s the difference between dormir and dormirse?

Dormir means to sleep, describing an ongoing state. Dormirse means to fall asleep, marking the specific moment sleep begins.

Why do ir and irse mean different things?

Ir describes going toward a destination. Irse describes leaving or departing from where you currently are — the reflexive form shifts the focus to the act of departing.

Do all Spanish verbs have a reflexive form?

No. Many verbs are only reflexive when the action is literally done to oneself (like lavarse, to wash oneself). Others have a reflexive version with a genuinely different meaning, and some rarely appear in reflexive form at all.

Is it optional to use the reflexive pronoun?

Not usually. When a verb has a distinct reflexive meaning, dropping the pronoun changes what the sentence says, even if it’s still grammatically valid.

What does “se” mean when it means “each other”?

It’s a reciprocal use of the reflexive pronoun, only possible with a plural subject: se conocen can mean “they know each other,” not just “they know themselves.”

Where does the reflexive pronoun go in a sentence?

Usually right before the conjugated verb (me levanto), but it attaches to the end of an infinitive, gerund, or affirmative command instead: voy a levantarme, levantándome, levántate.

Check your Spanish before you send it

Missing or misplaced reflexive pronouns are an easy thing to overlook while writing quickly. corrector.co’s free Spanish checker catches them for you.

Next: Ir vs Venir · Preterite vs Imperfect

The short version

• Après = after, a PREPOSITION — needs a noun, pronoun, or clause attached to it (or can stand alone meaning “afterward”).
• Puis = then/next, an ADVERB sequencing actions, slightly more casual and punchy.
• Ensuite = then/next, an ADVERB, functionally close to puis but slightly more formal or written.

If you need to attach a noun (“after the meeting”), you need après. If you’re just sequencing verbs or clauses (“then we ate”), puis or ensuite both work.

When to use après

• Before a noun: Après le dîner, on regarde un film. (After dinner, we watch a movie.)
• Before a pronoun: Après toi. (After you.)
• Standing alone, meaning “afterward”: On mange, et après on verra. (We’ll eat, and afterward we’ll see.)
• Après que + clause (technically requires indicative, though subjunctive is common in casual speech): Après qu’il est parti… (After he left…)
• Après avoir/être + past participle, for same-subject sequencing: Après avoir mangé, il est parti. (After eating, he left.)

When to use puis and ensuite

• Sequencing actions, casual: On a mangé, puis on est sortis. (We ate, then we went out.)
• Sequencing actions, slightly more formal: Elle s’est levée, ensuite elle a pris son café. (She got up, then she had her coffee.)
• Listing steps in instructions: D’abord, coupez les légumes. Ensuite, faites chauffer l’huile. (First, cut the vegetables. Then, heat the oil.)
• Puis can also mean “besides” or “plus” in casual asides: Et puis, je n’ai pas le temps. (And besides, I don’t have time.)
• Combining both across a longer sequence: D’abord on visite le musée, puis on déjeune, et ensuite on rentre. (First we visit the museum, then we have lunch, and after that we go home.)

Quick chart

Is there really a difference between puis and ensuite?

For most everyday purposes, no — native speakers use puis and ensuite close to interchangeably when sequencing actions, and both are correct in casual conversation. The subtle difference shows up more in register and rhythm than in strict meaning. Ensuite feels slightly more formal and is more common in written instructions, recipes, and structured explanations — you’ll see D’abord… Ensuite… Enfin… as a classic three-part sequencing structure in written French. Puis feels a touch more casual and conversational, and it carries an extra colloquial use that ensuite doesn’t share: et puis can mean “and besides” or “and also,” adding a reason rather than strictly sequencing time, as in et puis, je suis fatigué (and besides, I’m tired). If you’re writing formal instructions, lean toward ensuite; if you’re telling a casual story out loud, puis fits naturally and sounds less stiff. Neither choice will ever be marked wrong — this is a stylistic register difference, not a hard grammar rule. In longer sequences, French speakers often mix both together for variety, using d’abord, puis, and ensuite in the same paragraph rather than repeating one word four times.

Mistakes learners make

• Using après directly before a verb with no clause connector: après manger is understood but après avoir mangé is more standard when the subjects match.
• Treating puis or ensuite like a preposition and trying to attach a noun directly: puis le dîner is not correct — these words sequence actions, not nouns.
• Forgetting après can stand alone meaning “afterward,” and instead always searching for a noun to attach it to.
• Overusing et puis to mean “and then” when a simple sequencing word (puis, ensuite) would sound more natural without the et.
• Repeating the same sequencing word throughout a whole story instead of varying between puis, ensuite, and après for natural rhythm.

Frequently asked questions

What’s the difference between après and ensuite?

Après is a preposition that needs a noun, pronoun, or clause attached to it. Ensuite is an adverb that sequences actions on its own, without needing anything grammatically attached.

What’s the difference between puis and ensuite?

They’re very close in meaning; puis is slightly more casual/conversational, ensuite slightly more formal or written. Both correctly sequence actions as “then” or “next.”

Can après stand alone without a noun?

Yes, meaning “afterward”: on verra après (we’ll see afterward). It’s only when après is directly followed by something that it needs a noun, pronoun, or que-clause attached.

Do you say après manger or après avoir mangé?

Après avoir mangé (after having eaten) is the standard construction when the subject of both actions is the same — après + infinitive needs the compound infinitive form (avoir/être + past participle).

What does et puis mean?

Beyond simple sequencing (“and then”), et puis is often used casually to mean “and besides” or “and also,” adding a reason rather than strictly ordering events in time.

Which is more formal, puis or ensuite?

Ensuite generally reads as slightly more formal or structured, common in written instructions and recipes, while puis feels more natural in casual spoken storytelling.

Can puis and ensuite both appear in the same sentence?

Not typically together in one clause, but across a longer sequence of steps, French speakers often vary between d’abord, puis, and ensuite rather than repeating the same sequencing word throughout.

Sequencing words are easy to use wrong without ever sounding obviously incorrect. corrector.co’s free French checker flags après used without a required noun or clause.

Next: Depuis que vs Pendant que · Encore vs Toujours

The short version

• Oui = yes, the default affirmative answer to any positively phrased question.
• Si = yes, but ONLY used to contradict a negative question or statement.

The test: was the question or statement you’re responding to phrased in the negative? If yes, and your answer contradicts that negative, you need si, not oui.

When to use oui

• Answering a positive question: Tu aimes le café? Oui, j’adore. (Do you like coffee? Yes, I love it.)
• Confirming a positive statement: Il fait beau. Oui, c’est vrai. (It’s nice out. Yes, that’s true.)
• General affirmative agreement in any positively-framed exchange.
• Answering a negative question in agreement WITH the negative: Tu n’aimes pas ça? Non, je n’aime pas. (uses non, not oui, to agree with the negative).

When to use si

• Contradicting a negative question: Tu n’aimes pas le café? Si, j’adore ça! (You don’t like coffee? Yes I do, I love it!)
• Contradicting a negative statement: Tu ne viens pas ce soir? Si, je viens. (You’re not coming tonight? Yes, I am.)
• Correcting someone’s negative assumption about you: Tu n’as pas fini? Si, j’ai fini. (You haven’t finished? Yes I have.)
• Emphatically disagreeing with a negative claim: Ce n’est pas possible! Si, c’est possible! (That’s not possible! Yes it is!)

Quick chart

Why English speakers get this backwards

The confusion makes total sense once you see how English actually handles the same situation: it doesn’t switch words at all, it relies entirely on stress and context. If someone asks “You don’t like coffee?” and you do like it, you say “Yes” — the same word you’d use for a positive question — and rely on tone or a follow-up (“yes, I do”) to make the contradiction clear. French refuses to let the word “oui” carry that ambiguity, so it built a dedicated word, si, whose entire job is signaling “I am contradicting the negative frame you just used.” This means that in French, answering a negative question with oui isn’t just stylistically off — it can genuinely create confusion about whether you’re agreeing with the negative (confirming you don’t like coffee) or contradicting it (asserting that you do), because oui doesn’t carry that disambiguating signal the way si does. Native speakers rely on this distinction constantly in fast conversation, precisely because it removes the ambiguity English leaves hanging. The pattern extends past single-word answers, too: si can carry the same contradicting force inside a full sentence, not just as a one-word reply. Someone might say tu ne comprends jamais rien (“you never understand anything”), and the sharpest way to push back isn’t a plain oui but si, je comprends très bien — leading with si to flag immediately that what follows is a direct rebuttal of the negative claim, before the listener even reaches the rest of the sentence.

Mistakes learners make

• Answering a negative question with oui when you mean to contradict it — this creates real ambiguity, unlike in English.
• Using si to answer a positive question, where it isn’t needed or correct — si only appears after a negative frame.
• Forgetting that si also has a completely separate meaning as “if” (a conditional conjunction) — context, not spelling, tells them apart.
• Underestimating how noticeable this mistake is to native speakers, since the si/oui distinction is used constantly in everyday conversation.
• Confusing agreement with a negative (non) and contradiction of a negative (si) — these are opposite responses to the same kind of question.

Frequently asked questions

What’s the difference between si and oui?

Oui is the default “yes” for positively phrased questions. Si is a special “yes” used only to contradict a negative question or statement.

When do you use si instead of oui?

Use si specifically when you’re disagreeing with or contradicting something phrased negatively — like answering “you’re not coming?” with “si, je viens” (yes I am).

Does si always mean “if” in French?

No. Si has two separate uses: as a conditional conjunction meaning “if,” and as a contradictory “yes” answering a negative question. Context makes clear which one is meant.

Is it wrong to answer a negative question with oui?

It’s not fully incorrect, but it creates real ambiguity about whether you’re agreeing with the negative or contradicting it — native French speakers use si specifically to remove that ambiguity.

How do you contradict “you don’t like coffee” in French?

Si, j’aime le café (yes, I do like coffee), using si because you’re contradicting the negative frame of the original statement.

Why doesn’t English have a word like si?

English relies on stress, tone, and follow-up phrasing (“yes, I do”) to clarify a contradiction, where French built a dedicated word specifically for that function.

Can si start a whole sentence, not just a one-word answer?

Yes. Si, je comprends très bien (“Yes I do, I understand very well”) uses si to open a full contradicting sentence, signaling the pushback before the rest of the response follows.

Does si change meaning based on where it appears in a sentence?

Its contradicting-yes meaning only applies as a standalone reply or sentence-opener to a negative. Elsewhere in a sentence, si almost always reverts to its conditional meaning, “if.”

Si versus oui is a small word choice that instantly signals whether you’re thinking in French or translating from English. corrector.co’s free French checker flags oui used after a negative question.

Next: Tu vs Vous · French False Friends

The short version

• Llevar + time + gerund: the most natural, conversational option. Llevo dos años estudiando español.
• Hace + time + que + present tense: a common alternative, often placed at the start of the sentence. Hace dos años que estudio español.
• Desde hace + time, attached directly to a verb already in progress: Estudio español desde hace dos años.

All three sentences mean essentially the same thing: “I’ve been studying Spanish for two years,” and the action is still ongoing in the present.

Llevar + time + gerund

This is the structure most native speakers reach for first in conversation. The subject goes with llevar, and the main action becomes a gerund (the -ando/-iendo form): Llevo tres meses trabajando aquí. (I’ve been working here for three months.) Lleva un año viviendo en Chile. (She’s been living in Chile for a year.) Llevamos horas esperando. (We’ve been waiting for hours.)

Hace + time + que

This version puts the time expression first, often at the very start of the sentence, followed by “que” and the verb in the present tense (not a gerund): Hace tres meses que trabajo aquí. Same meaning, different structure — note the verb stays in a normal present tense form (“trabajo”), not a gerund. Hace años que no lo veo. (I haven’t seen him in years.)

Desde hace

This structure attaches directly onto a sentence that’s already complete on its own, adding the duration at the end (or sometimes the beginning): Trabajo aquí desde hace tres meses. It reads almost like an afterthought tacked onto a normal present-tense sentence, which makes it feel the most “regular” grammatically to English speakers. Vivimos en esta ciudad desde hace diez años. (We’ve lived in this city for ten years.)

Quick chart

The past-tense version: hacía

All three structures shift to describe something that had been happening up until a point in the past, using the imperfect hacía instead of hace: Llevaba dos años estudiando cuando me mudé. (I had been studying for two years when I moved.) Hacía tres meses que trabajaba allí cuando renuncié. (I had been working there for three months when I quit.) Vivía en Lima desde hacía cinco años. (I had been living in Lima for five years.) The logic stays identical — just shifted a tense back.

Negative duration: talking about something that hasn’t happened

These structures work just as naturally with negative statements, describing how long it’s been since something last happened, which is a very common real-world use that courses often skip. No lo veo desde hace un año. (I haven’t seen him in a year.) Hace meses que no como pizza. (I haven’t eaten pizza in months.) Llevo semanas sin dormir bien. (I’ve gone weeks without sleeping well — notice llevar pairs with “sin” plus an infinitive here instead of a gerund, since the action is something not happening.) The negative versions follow the same three-structure system, just reframed around absence instead of an ongoing action.

Mistakes learners make

• Using a gerund after hace…que: it should stay in a normal present tense verb form, not switch to -ando/-iendo. Hace un año que estudiando is wrong; it’s hace un año que estudio.
• Forgetting “que” after hace when the time expression comes first: Hace tres años estudio español should be Hace tres años que estudio español.
• Mixing llevar’s gerund requirement with the other structures: llevar needs a gerund (llevo estudiando), not a plain present tense (llevo estudio is wrong).
• Using a gerund with llevar in a negative sentence about absence: it should be sin plus an infinitive, not a negated gerund — llevo sin dormir, not llevo no durmiendo.

Desde vs desde hace: don’t drop the “hace”

A related, easy-to-miss slip: desde alone means “since,” pointing to a starting moment (desde el lunes — since Monday), while desde hace specifically measures a span of duration (desde hace tres días — for three days). They look almost interchangeable but answer different questions — desde answers “since when,” desde hace answers “for how long.” Vivo aquí desde 2020 (I’ve lived here since 2020) points to a starting date; Vivo aquí desde hace cinco años (I’ve lived here for five years) measures the length of time instead. Dropping “hace” when you mean duration, or adding it when you mean a fixed starting point, is a subtle but common mix-up.

Frequently asked questions

What’s the difference between llevar, hace que, and desde hace for duration?

They express the same idea — how long something has been ongoing — but use different sentence structures. Llevar takes a gerund, hace…que takes a normal present-tense verb after “que,” and desde hace attaches to an already-complete sentence.

Do you use a gerund with hace…que?

No, that’s specific to llevar. Hace…que uses a regular present-tense verb form.

How do you say “I’ve been living here for five years” in Spanish?

Any of these work: Llevo cinco años viviendo aquí. Hace cinco años que vivo aquí. Vivo aquí desde hace cinco años.

Which structure is most common in everyday speech?

Llevar + gerund is generally the most natural and frequently used in conversational Spanish, though all three are correct and widely understood.

How do you say you haven’t done something in a while?

All three structures work in the negative: No lo veo desde hace un año. Hace un año que no lo veo. Llevo un año sin verlo.

What’s the past-tense form of these duration structures?

Hace becomes hacía, and llevo becomes llevaba, describing something that had been ongoing up to a point in the past: Llevaba un año estudiando cuando me mudé.

Check your Spanish before you send it

Duration expressions have tricky grammar even when the meaning is clear in your head. corrector.co’s free Spanish checker can help you catch structural mistakes.

Next: Preterite vs Imperfect · Por vs Para

The short version

• A false friend looks or sounds like an English word but means something different in French.
• Some are harmless mix-ups; a few can genuinely confuse or embarrass you in conversation.
• The fix is memorization — there’s no grammatical rule that predicts which cognates are false.

The most common false friends

• Assister à = to attend (not “to assist”): J’ai assisté à la réunion. (I attended the meeting.)
• Actuellement = currently (not “actually”): Il travaille actuellement à Paris. (He’s currently working in Paris.)
• Librairie = bookstore (not “library,” which is bibliothèque): J’ai acheté ce livre à la librairie.
• Demander = to ask (not “to demand,” which is exiger): Je vais demander de l’aide. (I’m going to ask for help.)
• Rester = to stay (not “to rest,” which is se reposer): Je reste à la maison ce soir. (I’m staying home tonight.)
• Sensible = sensitive (not “sensible,” which is raisonnable): Elle est très sensible. (She’s very sensitive.)
• Attendre = to wait (not “to attend,” which is assister à): J’attends le bus. (I’m waiting for the bus.)

Quick chart

The false friends that cause real embarrassment

Most false friends just cause momentary confusion, but a few can genuinely land you in an awkward spot in conversation. Préservatif doesn’t mean “preservative” — it means “condom,” so complimenting a French chef on how well their dish is preserved using this word will not go the way you expect (the actual word for a food preservative is conservateur). Blesser doesn’t mean “to bless” — it means “to injure” or “to hurt,” so je suis blessé means “I’m hurt,” not some sanctified state, and telling someone que Dieu vous blesse is the opposite of a blessing. Coin doesn’t mean “coin” (that’s pièce) — it means “corner,” as in a corner of a room. And envie, while it can relate to “envy,” is used constantly for simple desire — j’ai envie de café just means “I feel like coffee,” nothing covetous about it. Two more that catch even careful learners: collège doesn’t mean “college” — it’s French middle school, roughly ages eleven to fifteen, since French higher education is université and there’s no clean single equivalent for the American sense of “college.” And monnaie doesn’t mean “money” in general — it specifically means loose change or coins, while money as a broad concept is argent; asking a cashier vous avez de la monnaie? is asking if they have change, not asking whether they’re rich. These aren’t obscure trivia; they’re common enough words that an English speaker will eventually reach for the false-friend meaning out of habit, so it’s worth deliberately memorizing this smaller, higher-stakes list separately from the merely-confusing ones.

Mistakes learners make

• Using assister to mean “help,” producing a sentence that actually means “attend” instead — aider is the word for helping someone.
• Saying actuellement when you mean “actually” (in the sense of correcting a misconception) — that’s en fait, not actuellement.
• Asking for a librairie when you want a place to borrow books — that’s a bibliothèque; a librairie sells books.
• Using préservatif in a food context expecting it to mean “preservative” — it doesn’t, and the mix-up is memorable for the wrong reasons.
• Mixing up attendre (to wait) and attend, forgetting the French verb has nothing to do with attendance.
• Assuming collège is an American-style college — it’s actually French middle school, well before university level.

Frequently asked questions

What is a false friend in French?

A word that looks or sounds similar to an English word but has a different meaning — like actuellement (currently, not actually) or librairie (bookstore, not library).

Does assister mean “to assist” in French?

No. Assister à means “to attend,” as in attending an event or meeting. “To assist” or “to help” is aider in French.

What’s the difference between librairie and bibliothèque?

Librairie is a bookstore, where you buy books. Bibliothèque is a library, where you borrow them. The words look swapped compared to English intuition, which is exactly why they’re a classic false-friend pair.

Does actuellement mean “actually”?

No, it means “currently” or “at the moment.” “Actually,” in the sense of correcting something, is en fait in French.

What does préservatif mean in French?

Condom — not “preservative,” which is conservateur. This is one of the false friends most likely to cause a genuinely awkward mix-up.

Is sensible the same as “sensible” in English?

No. French sensible means “sensitive.” The English meaning of “sensible” (reasonable, practical) translates to raisonnable in French instead.

Does collège mean “college” in French?

No. Collège is French middle school, roughly ages eleven to fifteen. French higher education is université, and there’s no single French word that maps cleanly onto the American concept of “college.”

What does monnaie mean if it’s not “money”?

Loose change or coins specifically. General money is argent. Vous avez de la monnaie? is asking if someone has change, not asking about their overall wealth.

Is coin a false friend in French?

Yes. Coin means “corner,” as in the corner of a room or street, not a physical coin. A physical coin is une pièce in French.

False friends slip past spellcheckers because every individual word is spelled correctly — the mistake is entirely about meaning. corrector.co’s free French checker flags common false-friend misuses in context.

Next: Devoir vs Falloir · Si vs Oui

The short version

• A marks motion toward a destination, a specific point, or an exact time.
• En marks location inside, on, or at a place, and broader time periods like months and years.

When to use a

• Movement toward a destination: Voy a la tienda. (I’m going to the store.) Llegamos a Madrid mañana. (We arrive in Madrid tomorrow.)
• An exact clock time: Llegamos a las cinco. (We arrive at five.) La clase empieza a las nueve. (Class starts at nine.)
• Distance from a point: Vivo a diez minutos de aquí. (I live ten minutes from here.) El pueblo está a cien kilómetros de la ciudad. (The town is a hundred kilometers from the city.)
• Before a direct object that’s a specific person, the “personal a”: Vi a Marta. (I saw Marta.)

When to use en

• Location inside or at a place, no motion involved: Estoy en la oficina. (I’m at the office.) Vivimos en Barcelona. (We live in Barcelona.)
• Months, years, and seasons: Nací en 1995. (I was born in 1995.) en enero, en verano.
• Mode of transport, in many varieties of Spanish: Viajamos en coche. (We traveled by car.) Fue en avión. (He went by plane.)
• On a surface: El libro está en la mesa. (The book is on the table.)

Quick chart

The motion test

Here’s the fastest way to check yourself: does the sentence describe arriving somewhere, or being somewhere? Arriving, heading toward, or reaching a point takes a. Already being located there, inside it or at it, takes en. Llegamos a la playa (we arrived at the beach) captures the moment of arrival; Estamos en la playa (we’re at the beach) describes the state of already being there. It’s the same beach in both sentences — the difference is entirely about motion versus location.

The transportation exception that varies by region and verb

Mode of transportation is where this rule gets genuinely messy, because usage shifts depending on the specific means and the region. “On foot” is always a pie, never en pie — an old fixed exception that doesn’t follow the general pattern. “On horseback” is similarly a caballo. But cars, planes, buses, and boats generally use en: en coche, en avión, en autobús, en barco. Some regions and speakers extend a to a few more transport methods than others do, so if a specific expression sounds unfamiliar, it may simply be a regional preference rather than an error. When in doubt for anything other than pie and caballo, en is the safer default for transportation.

En for manner: idioms worth knowing

Beyond place and time, en covers a cluster of common idioms describing the manner or way something is done, a use that doesn’t fit neatly into either “location” or “time.” En serio (seriously, for real), en broma (as a joke), en voz alta (out loud), en general (generally). Lo dije en broma, no en serio. (I said it as a joke, not seriously.) These are worth learning as fixed chunks rather than trying to derive them from the core a/en rule, since “manner” is really a third function en has taken on beyond its two main jobs.

Entrar a vs entrar en

Another spot where usage splits by region: the verb entrar (to enter) pairs with en in Spain (entrar en la casa) but very commonly with a in much of Latin America (entrar a la casa). Both are widely understood and accepted as correct within their respective regions — it’s one of the few genuine either/or cases in the a/en system, rather than a strict right-or-wrong rule.

Al: the contraction you can’t skip

Worth flagging separately, because it’s mandatory rather than optional: whenever a is immediately followed by the masculine definite article el, Spanish contracts them into al. Voy al parque (not voy a el parque). This is one of only two contractions in Spanish (the other being del, from de + el), and skipping it is one of the more noticeable beginner mistakes, since native speakers never pronounce or write “a el” as two separate words. It only applies to el, never to la, los, or las — voy a la tienda stays two words.

Mistakes learners make

• Using en for a destination you’re moving toward: Voy en la tienda should be Voy a la tienda, since “voy” implies motion.
• Using a for an exact location with no motion: Estoy a mi casa should be Estoy en mi casa.
• Forgetting the personal a before a specific person as a direct object: Vi Marta should be Vi a Marta.
• Saying en pie instead of a pie for “on foot” — this one breaks the general en-for-location pattern as a fixed exception.

Frequently asked questions

What’s the difference between a and en?

A marks movement toward a destination or an exact point in time. En marks being located inside or at a place, and broader periods of time like months and years.

Do you say “voy a” or “voy en”?

Voy a, always, when naming a destination: Voy a la playa. En doesn’t pair with voy to mean “going to.”

Why is it “en enero” but “a las tres”?

Because en covers broader time periods like months, while a marks an exact clock time.

What is the personal a?

A required before a direct object when it’s a specific person: Vi a Juan, not Vi Juan. It has nothing to do with motion — it’s a separate rule about direct objects that are people.

Is it “a pie” or “en pie” for “on foot”?

A pie, always — it’s a fixed exception to the usual en-for-location pattern.

Is “entrar en” or “entrar a” correct?

Both, depending on region: entrar en is standard in Spain, while entrar a is very common throughout Latin America. Neither is considered wrong.

Check your Spanish before you send it

Preposition mistakes are some of the hardest to self-correct because they often still sound “close enough.” corrector.co’s free Spanish checker catches them precisely.

Next: Hay vs Está/Están · Muy vs Mucho

The short version

• Devoir = must/have to, a PERSONAL obligation, conjugated for whoever has it (je dois, tu dois, il doit…).
• Falloir = it is necessary, an IMPERSONAL obligation, existing only as il faut, with no other conjugated forms.

If you’re naming who specifically has the obligation, use devoir and conjugate it to match them. If you’re stating a general necessity without pinning it on anyone in particular, use il faut.

When to use devoir

• Personal obligation: Je dois partir maintenant. (I have to leave now.)
• Conjugated for the subject: Tu dois étudier. (You must study.) Ils doivent attendre. (They have to wait.)
• Probability, a secondary use: Il doit être fatigué. (He must be tired — a guess.)
• Debt, a separate literal meaning: Je te dois dix euros. (I owe you ten euros.)
• Past obligation: J’ai dû partir tôt. (I had to leave early.)

When to use falloir

• General necessity: Il faut partir. (One has to leave. / We need to leave.)
• With a specific person via an indirect object pronoun: Il me faut du temps. (I need time.)
• Followed by a subjunctive clause for a specific person’s obligation: Il faut que tu partes. (You need to leave.)
• Never conjugated for a subject other than the impersonal il — there’s no je faux or tu faux.
• In other tenses, still impersonal: Il fallait partir plus tôt. (We should have left earlier.)

Quick chart

Two ways to make falloir personal without conjugating it

Because falloir can never conjugate to match a specific subject, French needs two workarounds to attach a general necessity to a particular person, and both are worth knowing. The first is adding an indirect object pronoun directly to il faut: il me faut du temps literally means “time is necessary to me,” using me the same way you’d use it with plaire or manquer — this structure feels backwards to English speakers but works exactly like j’ai besoin de in meaning, just grammatically inverted. The second workaround is following il faut with que and a subjunctive clause: il faut que je parte (“it’s necessary that I leave,” i.e., “I have to leave”) lets you specify exactly who the obligation belongs to, using the subjunctive mood inside the que-clause. Both structures accomplish roughly what devoir does directly, but neither actually conjugates falloir itself — the verb stays locked in its single impersonal il faut form no matter which person the obligation ultimately lands on, even across different tenses like il fallait (had to) or il faudra (will have to).

Mistakes learners make

• Trying to conjugate falloir for a subject other than il — there’s no such thing as tu faux or je faux; the verb only exists as il faut.
• Using devoir when a general, unattributed necessity is meant, producing an overly personal statement where il faut would sound more natural.
• Forgetting the subjunctive after il faut que — it’s il faut que tu partes, not il faut que tu pars.
• Confusing devoir’s obligation meaning with its “probability” meaning (il doit être tard = it must be late, a guess) versus its “owe” meaning (je lui dois de l’argent).
• Forgetting falloir still changes tense (il fallait, il faudra) even though it never changes person.

Frequently asked questions

What’s the difference between devoir and falloir?

Devoir is a personal obligation verb, conjugated for whoever has to do something. Falloir is impersonal and only exists as il faut, expressing a general necessity without naming a specific person directly.

Can you conjugate falloir for je or tu?

No. Falloir only exists in the impersonal third-person form il faut — there’s no je faux or tu faux. To attach it to a specific person, you add an indirect object pronoun (il me faut) or use il faut que + subjunctive.

How do you say “I have to leave” in French two different ways?

Je dois partir (using devoir, personal) or il faut que je parte (using falloir with a subjunctive clause) — both mean roughly the same thing, built differently.

What does il me faut mean?

“I need,” literally “it is necessary to me.” It’s falloir’s way of attaching a general necessity to a specific person without conjugating the verb itself.

Does devoir always mean obligation?

No. Devoir can also express probability (il doit être tard — it must be late, a guess) or literal debt (je te dois vingt euros — I owe you twenty euros).

Why does il faut que take the subjunctive?

Because il faut que is a necessity expression, and necessity is one of the standard categories of French subjunctive triggers, alongside wishes, emotion, and doubt.

Is il faut more formal than devoir?

Not exactly formal versus informal — il faut is simply the impersonal option, common in both speech and writing whenever you’re stating a general rule rather than a specific person’s obligation.

Does falloir change in the future or conditional?

Yes, but only in tense, never in person: il faudra (it will be necessary) and il faudrait (it would be necessary) both stay locked to the impersonal il.

Devoir and falloir look similar in meaning but behave completely differently in structure. corrector.co’s free French checker flags falloir conjugated incorrectly for a subject other than il.

Next: French Subjunctive Triggers · Y vs En