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

ByMichael Burns

Introduction to the verb désaffecter

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The English translation of the French verb désaffecter is “to decommission” or “to disaffect.” The infinitive form is pronounced as “day-zah-feck-teh.”

The language origin of désaffecter can be traced back to the combination of the prefix “dés-” which means “dis” or “un” and the verb “affecter” which means “to affect.” It is typically used in everyday French to describe the process of taking something out of service or making it no longer functional.

In the Conditionnel Passé tense, désaffecter is used to express a hypothetical action or event that would have occurred in the past. It is formed by conjugating the auxiliary verb “avoir” in the Conditionnel Présent tense and adding the past participle “désaffecté.” Some examples of its usage in this tense are:

  1. Si nous avions désaffecté cette usine, elle n’aurait pas pollué la rivière. (If we had decommissioned this factory, it wouldn’t have polluted the river.)

  2. J’aurais désaffecté mon vieux téléphone si j’avais eu les moyens d’en acheter un nouveau. (I would have disaffected my old phone if I had the means to buy a new one.)

  3. Tu aurais dû désaffecter ta voiture avant de partir en vacances. (You should have decommissioned your car before going on vacation.)

In these examples, désaffecter is used to describe a past action that did not actually happen, but could have happened under different circumstances. Its usage in the Conditionnel Passé tense allows for a more nuanced expression of potential events in the past.

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

Pronoun Conjugation Example Usage English Translation
je aurais désaffecté Si je n’avais pas été malade, j’aurais désaffecté l’immeuble. If I hadn’t been sick, I would have decommissioned the building.
tu aurais désaffecté Tu aurais désaffecté les vieilles installations. You would have decommissioned the old facilities.
il aurait désaffecté Il aurait désaffecté les bâtiments en ruine. He would have decommissioned the dilapidated buildings.
elle aurait désaffecté Elle aurait désaffecté la zone dangereuse. She would have decommissioned the hazardous area.
on aurait désaffecté On aurait désaffecté l’usine désaffectée. One would have decommissioned the abandoned factory.
nous aurions désaffecté Nous aurions désaffecté les locaux. We would have decommissioned the premises.
vous auriez désaffecté Vous auriez désaffecté les équipements. You would have decommissioned the equipment.
ils auraient désaffecté Ils auraient désaffecté les sites contaminés. They would have decommissioned the contaminated sites.
elles auraient désaffecté Elles auraient désaffecté les installations électriques. They (female) would have decommissioned the electrical systems.

Other Conjugations for Désaffecter.

    

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

    Imparfait (Imperfect) Tense Conjugation of the French Verb désaffecter
     

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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


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Désaffecter – 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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