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

ByMichael Burns

Introduction to the verb dépressuriser

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The English translation of the French verb dépressuriser is “to depressurize.” It is pronounced as “day-pruh-suh-ree-zay” in its infinitive form.

Dépressuriser is derived from the French word “pression,” meaning “pressure,” and the prefix “dé-,” which indicates a reversal or reduction. It is a regular verb in French, meaning it follows the typical conjugation pattern for -er verbs.

In everyday French, dépressuriser is used in the Conditionnel Passé tense to express a hypothetical or unrealized action in the past. This tense is formed by using the conditional form of the auxiliary verb “avoir” or “être” followed by the past participle of dépressuriser (dépressurisé).

Here are three simple examples of dépressuriser in the Conditionnel Passé tense with their respective English translations:

  1. Si j’avais dépressurisé la cabine, personne ne serait mort. (If I had depressurized the cabin, no one would have died.)
  2. Tu aurais dépressurisé la bouteille avant de l’ouvrir. (You would have depressurized the bottle before opening it.)
  3. Nous serions arrivés à bon port si le pilote avait dépressurisé le réservoir. (We would have arrived safely if the pilot had depressurized the tank.)

Table of the Conditionnel Passé (Conditional Past) Tense Conjugation of dépressuriser

Pronoun Conjugation Example Usage English Translation
je aurais dépressurisé Si j’avais su, je l’aurais dépressurisé. I would have depressurized it if I had known.
tu aurais dépressurisé Tu aurais dépressurisé le vaisseau. You would have depressurized the ship.
il aurait dépressurisé Il aurait dépressurisé la cabine. He would have depressurized the cabin.
elle aurait dépressurisé Elle aurait dépressurisé la salle. She would have depressurized the room.
on aurait dépressurisé On aurait dépressurisé l’espace. One would have depressurized the space.
nous aurions dépressurisé Nous aurions dépressurisé le compartiment. We would have depressurized the compartment.
vous auriez dépressurisé Vous auriez dépressurisé l’avion. You would have depressurized the plane.
ils auraient dépressurisé Ils auraient dépressurisé la capsule. They would have depressurized the capsule.
elles auraient dépressurisé Elles auraient dépressurisé la navette. They (female) would have depressurized the shuttle.

Other Conjugations for Dépressuriser.

    

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

    Imparfait (Imperfect) Tense Conjugation of the French Verb dépressuriser
     

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

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

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

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

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

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

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

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

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

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

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

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

    Conditionnel Passé (Conditional Past) Tense Conjugation of the French Verb dépressuriser  (this article)

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

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


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Dépressuriser – About the French Conditionnel Passé (Conditional Past) Tense

The French “Conditionnel Passé” is a compound tense used to express hypothetical or unreal actions in the past. It is formed by combining the conditional of the auxiliary verb “avoir” or “être” and the past participle of the main verb.

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

Formation

Start with the conditional of the auxiliary verb: For most verbs, use “aurais” (for “avoir”) or “serais” (for “être”) as the conditional form. 

With “avoir”: j’aurais, tu aurais, il/elle/on aurait, nous aurions, vous auriez, ils/elles auraient. 
With “être”: je serais, tu serais, il/elle/on serait, nous serions, vous seriez, ils/elles seraient. 

Add the past participle of the main verb to this conditional form. 
For example, if you want to say “I would have done,” you would use “j’aurais fait.” If you want to say “She would have gone,” you would use “elle serait allée.”

Common Everyday Usage Patterns

Expressing Unreal Past Scenarios

The Conditionnel Passé is often used to talk about actions that did not happen in the past, but you are speculating about what would have occurred if they had. It’s a way to discuss hypothetical situations in the past. 

Si j’avais su, je t’aurais aidé. (If I had known, I would have helped you.)
Il serait venu s’il avait eu le temps. (He would have come if he had had the time.) 

Polite Requests or Suggestions

It can be used to make polite requests or suggestions in the past. 

Pourriez-vous m’aider, s’il vous plaît ? (Could you have helped me, please?) 

Expressing Doubt or Uncertainty

It can convey doubt or uncertainty regarding past events.

Il aurait peut-être oublié notre rendez-vous. (He might have forgotten our appointment.)

Interactions with Other Tenses

Conditional Present

You can use the Conditionnel Passé in combination with the conditional present to describe past actions that were hypothetical at the time they were spoken about. J’aurais aimé que tu m’appelles hier. (I would have liked you to call me yesterday.) 

Indicative Past Tenses

You might use the Conditionnel Passé alongside indicative past tenses like the passé composé to contrast hypothetical and real past events. Il est venu hier, mais s’il avait pu, il serait venu la semaine dernière. (He came yesterday, but if he could have, he would have come last week.) 

Conditional Future

In some cases, you can use the Conditionnel Passé in combination with the conditional future to discuss unreal past events that could have consequences in the future. Si j’avais réussi mon examen, j’aurais un meilleur travail. (If I had passed my exam, I would have a better job.)

Summary

In summary, the Conditionnel Passé is used to express hypothetical or unreal actions in the past. It is often used in conjunction with other tenses to convey various nuances in French, allowing speakers to discuss imaginary past scenarios, make polite requests, or express doubt about past events.

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