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

ByMichael Burns

Introduction to the verb désulfiter

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The English translation of the French verb désulfiter is “to desulfurize.” It is pronounced “day-sool-fee-tay.”

The word désulfiter is composed of the prefix dés- which means “to remove” and the root word sulfite, referring to a type of chemical compound. Therefore, the verb désulfiter literally means “to remove sulfite.”

In everyday French, désulfiter is most often used in the Subjonctif Passé tense, which is used to express a hypothetical or uncertain action in the past. It is formed by using the auxiliary verb avoir or être in the subjunctive mood, followed by the past participle of the verb.

Examples:

  1. Il est possible que nous ayons désulfité l’eau avant de la boire. (It is possible that we desulfurized the water before drinking it.)
  2. J’aurais préféré que tu aies désulfité le carburant avant de le mettre dans la voiture. (I would have preferred if you had desulfurized the fuel before putting it in the car.)
  3. Il est nécessaire que les usines aient désulfité les émissions de gaz avant la fin de l’année. (It is necessary for the factories to have desulfurized their gas emissions before the end of the year.)

Table of the Subjonctif Passé (Subjunctive Past) Tense Conjugation of désulfiter

Pronoun Conjugation Example Usage English Translation
je aie désulfité Il est nécessaire que j’aie désulfité. It’s necessary that I have desulfurized.
tu aies désulfité Tu préfères que tu aies désulfité. You prefer that you have desulfurized.
il ait désulfité Il doute qu’il ait désulfité. He doubts that he desulfurized.
elle ait désulfité Elle est contente qu’elle ait désulfité. She is happy that she desulfurized.
on ait désulfité On veut qu’on ait désulfité. We want it to have been desulfurized.
nous ayons désulfité Il est important que nous ayons désulfité. It’s important that we desulfurized.
vous ayez désulfité Vous craignez que vous ayez désulfité. You fear that you desulfurized.
ils aient désulfité Ils espèrent qu’ils aient désulfité. They hope they desulfurized.
elles aient désulfité Elles sont certaines qu’elles aient désulfité. They are certain they desulfurized.

Other Conjugations for Désulfiter.

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

    Imparfait (Imperfect) Tense Conjugation of the French Verb désulfiter
   

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

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

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

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

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

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

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

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

    Subjonctif Passé (Subjunctive Past) Tense Conjugation of the French Verb désulfiter     (this article)

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

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

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

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

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

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

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

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Désulfiter – About the French Subjonctif Passé (Subjunctive Past) Tense

The French Subjonctif Passé is a verb tense used to express actions or states that are uncertain, hypothetical, or dependent on some condition in the past. It’s often used in conjunction with the main verb in the present or future tense to convey various nuances of doubt, desire, necessity, or emotion.

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

Formation of the Subjonctif Passé

To form the Subjonctif Passé, you generally need to start with the third person plural (ils/elles) form of the passé composé (a compound past tense). Then, drop the subject and replace it with the appropriate Subjonctif endings. The endings are the same for regular -er, -ir, and -re verbs:

   – For -er verbs: -e, -es, -e, -ions, -iez, -ent
   – For -ir verbs: -isse, -isses, -ît, -issions, -issiez, -issent
   – For -re verbs: -e, -es, -e, -ions, -iez, -ent

For example, if you have the verb “parler” (to speak) in the third person plural passé composé, which is “ils ont parlé” (they spoke), the Subjonctif Passé form would be “qu’ils aient parlé” (that they spoke).

Everyday Usage Patterns

The Subjonctif Passé is commonly used in various situations:

– Expressing doubt or uncertainty: It’s used when you’re not certain about the completion of an action in the past. For example, “Je doute qu’il ait mangé” (I doubt that he ate).

– Desires and preferences: When you want or wish for something to have happened in the past. For instance, “Je préfère que tu aies réussi” (I prefer that you have succeeded).

– Expressing emotions: To convey emotions or feelings related to past actions or events. For example, “Il est content que nous ayons gagné” (He is happy that we won).

– Hypothetical situations: When discussing hypothetical or unreal past situations. For example, “Si j’avais su, j’aurais souhaité qu’ils aient été là” (If I had known, I would have wished they had been there).

Interactions with Other Tenses

The Subjonctif Passé often interacts with other tenses to convey specific meanings:

Present tense

It’s commonly used after expressions of doubt, desire, necessity, or emotion in the present. For example, “Il faut que tu aies fini” (You must have finished).

Future tense

It’s used in the future for hypothetical or unreal actions in the past when the main clause is in the future. For example, “Je douterai qu’ils aient terminé demain” (I will doubt that they have finished tomorrow).

Conditional

When the main clause is in the conditional, the Subjonctif Passé can be used to express unreal or hypothetical actions in the past. For instance, “Il voudrait que nous ayons réussi” (He would like us to have succeeded).

Summary

The Subjonctif Passé is a versatile tense used in French to convey uncertainty, doubt, desire, or hypothetical situations related to past actions. It is used in various everyday contexts and interacts with other tenses to express specific nuances in the language.

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