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

ByMichael Burns

Introduction to the verb fiabiliser

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The English translation of the French verb fiabiliser is “to make reliable”. It is pronounced as “fee-ah-bee-lee-zay” in its infinitive form.

Fiabiliser is a French verb derived from the noun “fiabilité” which means “reliability”. It is often used in everyday French in the Conditionnel Passé tense, which is the conditional perfect tense. This tense is used to express actions or events that would have happened in the past if certain conditions had been met.

Examples of usage of fiabiliser in the Conditionnel Passé tense:

  1. Si j’avais fiabilisé mon ordinateur, je n’aurais pas perdu tous mes fichiers importants. (If I had made my computer reliable, I wouldn’t have lost all my important files.)

  2. Nous aurions pu éviter ce problème si nous avions fiabilisé notre voiture avant de partir en vacances. (We could have avoided this problem if we had made our car reliable before going on vacation.)

  3. S’ils avaient fiabilisé leur système de sécurité, ils n’auraient pas été victimes d’un vol. (If they had made their security system reliable, they wouldn’t have been victims of a robbery.)

English translations:

  1. If I had made
  2. We could have avoided
  3. If they had made

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

Pronoun Conjugation Example Usage English Translation
je aurais fiabilisé Si j’avais eu plus de temps, j’aurais fiabilisé le projet. If I had more time, I would have made the project more reliable.
tu aurais fiabilisé Tu aurais fiabilisé le système. You would have made the system more reliable.
il aurait fiabilisé Il aurait fiabilisé les données. He would have made the data more reliable.
elle aurait fiabilisé Elle aurait fiabilisé l’application. She would have made the application more reliable.
on aurait fiabilisé On aurait fiabilisé le processus. One would have made the process more reliable.
nous aurions fiabilisé Nous aurions fiabilisé les résultats. We would have made the results more reliable.
vous auriez fiabilisé Vous auriez fiabilisé le produit. You would have made the product more reliable.
ils auraient fiabilisé Ils auraient fiabilisé le système. They would have made the system more reliable.
elles auraient fiabilisé Elles auraient fiabilisé les informations. They (female) would have made the information more reliable.

Other Conjugations for Fiabiliser.

    

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

    Imparfait (Imperfect) Tense Conjugation of the French Verb fiabiliser
     

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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


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Fiabiliser – 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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