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

ByMichael Burns

Introduction to the verb dépolymériser

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The English translation of the French verb dépolymériser is “depolymerize.” It is pronounced as “day-poh-lee-may-ree-zay.”

Dépolymériser is derived from the prefix “dé-” meaning “undo” or “remove” and the verb “polymériser” meaning “to polymerize.” It is a scientific term used to describe the process of breaking down a polymer into its constituent monomers.

In everyday French, dépolymériser is most often used in the Subjonctif Passé tense to express a hypothetical or uncertain action in the past.

Three examples of its usage in this tense are:

  1. Il est possible que nous ayons dépolymérisé le plastique pour le recycler. (It is possible that we depolymerized the plastic to recycle it.)
  2. Je doute que tu aies dépolymérisé le caoutchouc correctement. (I doubt that you depolymerized the rubber correctly.)
  3. Il faut que j’aie dépolymérisé cette résine avant de l’utiliser dans mon expérience. (I have to have depolymerized this resin before using it in my experiment.)

English translations:

  1. It is possible that we depolymerized the plastic to recycle it.
  2. I doubt that you depolymerized the rubber correctly.
  3. I have to have depolymerized this resin before using it in my experiment.

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

Pronoun Conjugation Example Usage English Translation
je aie dépolymérisé Je ne crois pas que j’aie dépolymérisé. I don’t think I depolymerized.
tu aies dépolymérisé Il est possible que tu aies dépolymérisé. It’s possible you depolymerized.
il ait dépolymérisé Il est nécessaire qu’il ait dépolymérisé. It’s necessary he depolymerized.
elle ait dépolymérisé Elle craint qu’elle ait dépolymérisé. She fears she depolymerized.
on ait dépolymérisé On espère qu’on ait dépolymérisé. We hope it was depolymerized.
nous ayons dépolymérisé Je suis content que nous ayons dépolymérisé. I’m glad we depolymerized.
vous ayez dépolymérisé Il est important que vous ayez dépolymérisé. It’s important you depolymerized.
ils aient dépolymérisé Ils doutent qu’ils aient dépolymérisé. They doubt they depolymerized.
elles aient dépolymérisé Elles préfèrent qu’elles aient dépolymérisé. They prefer they depolymerized.

Other Conjugations for Dépolymériser.

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

    Imparfait (Imperfect) Tense Conjugation of the French Verb dépolymériser
   

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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Dépolymériser – 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.

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

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