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

ByMichael Burns

Introduction to the verb diffuser

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The English translation of the French verb diffuser is “to diffuse” or “to spread.” The infinitive form of the verb is pronounced as “dee-few-zay.”

The word diffuser comes from the Latin word diffusus, which means “to spread” or “to scatter.” In everyday French, it is most often used in the Conditionnel Passé tense, which is the conditional perfect tense.

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

  1. Si j’avais eu plus de temps, j’aurais diffusé cette information à tout le monde. (If I had had more time, I would have spread this information to everyone.)
  2. Elle aurait diffusé sa chanson sur toutes les plateformes musicales. (She would have spread her song on all the music platforms.)
  3. Si vous aviez acheté plus d’exemplaires, nous aurions diffusé votre livre dans plus de pays. (If you had bought more copies, we would have spread your book in more countries.)

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

Pronoun Conjugation Example Usage English Translation
je aurais diffusé Si j’avais su, je t’aurais diffusé. I would have broadcasted it to you.
tu aurais diffusé Tu aurais diffusé plus tôt. You would have broadcasted earlier.
il aurait diffusé Il aurait diffusé le match. He would have aired the game.
elle aurait diffusé Elle aurait diffusé la nouvelle. She would have broadcasted the news.
on aurait diffusé On aurait diffusé en direct. One would have broadcasted live.
nous aurions diffusé Nous aurions diffusé sur toutes les chaînes. We would have broadcasted on all channels.
vous auriez diffusé Vous auriez diffusé sur internet. You would have streamed on the internet.
ils auraient diffusé Ils auraient diffusé le discours. They would have aired the speech.
elles auraient diffusé Elles auraient diffusé leur concert. They (female) would have broadcasted their concert.

Other Conjugations for Diffuser.

    

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

    Imparfait (Imperfect) Tense Conjugation of the French Verb diffuser
     

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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


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Diffuser – 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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