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

ByMichael Burns

Introduction to the verb déboiser

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The English translation of the French verb déboiser is “to deforest” or “to clear (of trees)”. It is pronounced “day-bwah-zay”.

Déboiser comes from the French word “bois” meaning “woods” or “forest”. It is most commonly used in the Conditionnel Passé tense, which is used to express a hypothetical or unreal action that would have occurred in the past.

Three simple examples of déboiser in the Conditionnel Passé tense are:

  1. Si j’avais déboisé cette forêt, il n’y aurait plus d’habitat pour les animaux. (If I had deforested this forest, there would be no more habitat for the animals.)
  2. Nous aurions déboisé cette région pour construire une autoroute. (We would have cleared this region to build a highway.)
  3. S’ils avaient déboisé ces montagnes, il n’y aurait plus de paysage naturel. (If they had deforested these mountains, there would be no more natural landscape.)

English translations:

  1. If I had deforested this forest, there would be no more habitat for the animals.
  2. We would have cleared this region to build a highway.
  3. If they had deforested these mountains, there would be no more natural landscape.

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

Pronoun Conjugation Example Usage English Translation
je aurais déboisé Si j’avais su, je t’aurais déboisé. I would have deforested.
tu aurais déboisé Tu aurais déboisé plus tôt. You would have deforested earlier.
il aurait déboisé Il aurait déboisé la forêt. He would have deforested the forest.
elle aurait déboisé Elle aurait déboisé le parc national. She would have deforested the national park.
on aurait déboisé On aurait déboisé toute la région. One would have deforested the entire region.
nous aurions déboisé Nous aurions déboisé la montagne. We would have deforested the mountain.
vous auriez déboisé Vous auriez déboisé les arbres. You would have deforested the trees.
ils auraient déboisé Ils auraient déboisé la vallée. They would have deforested the valley.
elles auraient déboisé Elles auraient déboisé la forêt tropicale. They (female) would have deforested the rainforest.

Other Conjugations for Déboiser.

    

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

    Imparfait (Imperfect) Tense Conjugation of the French Verb déboiser
     

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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


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Déboiser – 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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