Subjonctif Imparfait (Subjunctive Imperfect) Tense Conjugation of the French Verb dépentaniser

ByMichael Burns

Introduction to the verb dépentaniser

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The English translation of the French verb dépentaniser is “to remove pentane.”

In French, the infinitive form of dépentaniser is pronounced “day-pahn-tah-nee-zay.”

The word dépentaniser is derived from the French word “pentane,” which comes from the Greek word “pente” meaning “five,” as pentane is a hydrocarbon with five carbon atoms. The suffix “-iser” is added to form a verb, meaning “to turn into pentane.”

In everyday French usage, dépentaniser is most often used in the Subjonctif Imparfait tense, which expresses uncertainty or doubt about an action in the past. It is often used to describe a hypothetical or imagined situation or to express a wish.

Three examples of dépentaniser in the Subjonctif Imparfait tense are:

  1. Il fallait que je dépentanise le mélange avant de le distiller. (It was necessary for me to remove the pentane from the mixture before distilling it.)

  2. Je souhaitais que vous dépentanisiez cette solution avant de l’utiliser. (I wished for you to remove the pentane from this solution before using it.)

  3. Il aurait fallu que tu dépentanises le carburant pour qu’il soit conforme aux normes environnementales. (It would have been necessary for you to remove the pentane from the fuel so that it complied with environmental standards.)

Table of the Subjonctif Imparfait (Subjunctive Imperfect) Tense Conjugation of dépentaniser

Pronoun Conjugation Example Usage English Translation
je dépentanisasse Si j’étais chimiste, je dépentanisasse les huiles. If I were a chemist, I would depentanize oils.
tu dépentanisasses Si tu connaissais le procédé, tu dépentanisasses le pétrole. If you knew the process, you would depentanize oil.
il dépentanisât Il serait possible qu’il dépentanisât l’essence. It would be possible that he would depentanize gasoline.
elle dépentanisât Elle serait curieuse de savoir si elle dépentanisât les gaz. She would be curious to know if she could depentanize gases.
on dépentanisât Si on dépentanisât le gaz naturel, on aurait plus de propane. If one depentanized natural gas, one would have more propane.
nous dépentanisassions Si nous dépentanisassions le mélange, nous pourrions le purifier. If we depentanized the mixture, we could purify it.
vous dépentanisassiez Si vous dépentanisassiez les produits de pétrole, vous auriez du carburant. If you depentanized petroleum products, you would have fuel.
ils dépentanisassent S’ils dépentanisassent les huiles lourdes, ils réduiraient l’émission de CO2. If they depentanized heavy oils, they would reduce CO2 emissions.
elles dépentanisassent Si elles dépentanisassent les matières grasses, elles auraient des produits plus sains. If they depentanized fatty substances, they would have healthier products.

Other Conjugations for Dépentaniser.

   
    Le Present (Present Tense) Conjugation of the French Verb dépentaniser
   

    Imparfait (Imperfect) Tense Conjugation of the French Verb dépentaniser
   

    Passé Simple (Simple Past) Tense Conjugation of the French Verb dépentaniser
   

    Passé Composé (Present Perfect) Tense Conjugation of the French Verb dépentaniser
   

    Futur Simple (Simple Future) Tense Conjugation of the French Verb dépentaniser
   

    Futur Proche (Near Future) Tense Conjugation of the French Verb dépentaniser
   

    Plus-que-parfait (Pluperfect) Tense Conjugation of the French Verb dépentaniser
   

    Passé Antérieur (Past Anterior) Tense Conjugation of the French Verb dépentaniser

    Futur Antérieur (Future Anterior) Tense Conjugation of the French Verb dépentaniser

    Subjonctif Présent (Subjunctive Present) Tense Conjugation of the French Verb dépentaniser

    Subjonctif Passé (Subjunctive Past) Tense Conjugation of the French Verb dépentaniser
   

    Subjonctif Imparfait (Subjunctive Imperfect) Tense Conjugation of the French Verb dépentaniser (this article)

    Subjonctif Plus-que-parfait (Subjunctive Pluperfect) Tense Conjugation of the French Verb dépentaniser
   

    Conditionnel Présent (Conditional Present) Tense Conjugation of the French Verb dépentaniser
   

    Conditionnel Passé (Conditional Past) Tense Conjugation of the French Verb dépentaniser

    L’impératif Présent (Imperative Present) Tense Conjugation of the French Verb dépentaniser

    L’infinitif Présent (Infinitive Present) Tense Conjugation of the French Verb dépentaniser

    Struggling with French verbs or the language in general? Why not use our free French Grammar Checker – no registration required!
   

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Dépentaniser – About the French Subjonctif Imparfait (Subjunctive Imperfect) Tense

The French Subjonctif Imparfait, also known as the imperfect subjunctive, is a verb tense used to express actions, states, or conditions that are uncertain, subjective, or hypothetical in the past. It is used in a variety of situations, including wishes, doubts, emotions, and polite requests, and often occurs in dependent clauses following certain expressions and conjunctions.

NOTE: To take a deep dive into all the French tenses then see my article on Mastering French Tense Conjugation.

Formation

To form the Subjonctif Imparfait, you typically start with the third person plural (ils/elles) form of the verb in the imparfait (imperfect) tense. Then, you remove the -ent ending and add the appropriate endings:

– For regular -er verbs: je -sse, tu -sses, il/elle/on -t, nous -ssions, vous -ssiez, ils/elles -ssent.
– For regular -ir and -re verbs: je -sse, tu -sses, il/elle/on -t, nous -ssions, vous -ssiez, ils/elles -ssent.

Common Everyday Usage Patterns

1. Expressing Doubt or Uncertainty: The Subjonctif Imparfait is used to express doubt or uncertainty about something that happened in the past.

Example: Il doutait qu’elle vînt à la fête. (He doubted that she came to the party.)

2. Wishes and Desires: It is used to express wishes or desires in the past.

Example: J’aurais aimé que tu fusses là. (I would have liked you to be there.)

3. Hypothetical Scenarios: The Subjonctif Imparfait is employed in hypothetical situations in the past.

Example: Si j’eusse su, j’aurais agi différemment. (If I had known, I would have acted differently.)
4. Polite Requests and Suggestions: It is used to make polite requests and suggestions in a formal or polite tone.

Example: Il souhaitait que vous vinssiez lui rendre visite. (He wished that you would come to visit him.)

Interactions with Other Tenses

Subjonctif Présent

The Subjonctif Imparfait is often used in dependent clauses with the Subjonctif Présent in the main clause, especially in complex sentences.

Example: Il faut que tu manges bien pour que tu aies de l’énergie. (You need to eat well so that you have energy.)

Indicatif Passé Composé

The Subjonctif Imparfait can be used alongside the Indicatif Passé Composé to indicate a contrast between a factual event and a hypothetical one.

Example: Il est parti avant que tu ne fusses arrivé. (He left before you arrived.)

Conditional

The Subjonctif Imparfait is often used with the Conditional to express unreal or hypothetical situations in the past.

Example: J’aurais pu le faire si j’eusse eu plus de temps. (I could have done it if I had had more time.)

Conditional Perfect

It can also be used with the Conditional Perfect to express unreal or hypothetical past events that would have occurred before other past events.

Example: J’aurais su s’il eût partagé l’information. (I would have known if he had shared the information.)

Summary

The Subjonctif Imparfait is a relatively complex tense, and its usage depends on the context and the verbs involved. It is essential to practice and become familiar with common expressions and contexts where this tense is appropriate to use it effectively in everyday French communication.

I hope you enjoyed this article on the verb dépentaniser. Still in a learning mood? Check out another TOTALLY random French verb conjugation!

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