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

ByMichael Burns

Introduction to the verb collaborer

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The English translation of the French verb collaborer is “to collaborate.” It is pronounced “koh-lah-boh-reh.”

The language origin of collaborer can be traced back to the Latin word “collaborare,” which means “to work together.” In everyday French, it is most often used in the Conditionnel Passé tense, which expresses a possibility or hypothetical action in the past.

Example 1: Si j’avais collaboré avec lui, nous aurions terminé le projet à temps.
Translation: If I had collaborated with him, we would have finished the project on time.

Example 2: Nous aurions dû collaborer plus étroitement pour éviter cette erreur.
Translation: We should have collaborated more closely to avoid this mistake.

Example 3: Il aurait été beaucoup plus facile si elle avait accepté de collaborer avec nous.
Translation: It would have been much easier if she had agreed to collaborate with us.

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

Pronoun Conjugation Example Usage English Translation
je aurais collaboré Si j’avais su, je t’aurais collaboré. I would have collaborated with you.
tu aurais collaboré Tu aurais collaboré plus tôt. You would have collaborated earlier.
il aurait collaboré Il aurait collaboré avec nous. He would have collaborated with us.
elle aurait collaboré Elle aurait collaboré avec toi. She would have collaborated with you.
on aurait collaboré On aurait collaboré pour ce projet. One would have collaborated for this project.
nous aurions collaboré Nous aurions collaboré ensemble. We would have collaborated together.
vous auriez collaboré Vous auriez collaboré avec eux. You would have collaborated with them.
ils auraient collaboré Ils auraient collaboré pour l’entreprise. They would have collaborated for the company.
elles auraient collaboré Elles auraient collaboré pour le projet. They (female) would have collaborated for the project.

Other Conjugations for Collaborer.

    

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

    Imparfait (Imperfect) Tense Conjugation of the French Verb collaborer
     

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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


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Collaborer – 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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