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

ByMichael Burns

Introduction to the verb décupler

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The English translation of the French verb décupler is “to multiply by ten.” It is pronounced as “day-koo-play” in its infinitive form.

The verb décupler is derived from the Latin word “decuplare,” which means “to multiply by ten.” In modern French, it is used to express the act of multiplying something by ten or making it ten times greater.

In everyday French, décupler is often used in the Conditionnel Passé tense, which is used to express a hypothetical or uncertain action in the past. It is formed by using the auxiliary verb “avoir” or “être” followed by the past participle of décupler.

Example 1: Si j’avais décuplé mes efforts, j’aurais réussi. (If I had multiplied my efforts by ten, I would have succeeded.)
Example 2: Elle serait très riche si elle avait décuplé ses investissements. (She would be very rich if she had multiplied her investments by ten.)
Example 3: Nous aurions eu plus de temps si nous avions décuplé notre vitesse. (We would have had more time if we had multiplied our speed by ten.)

English translations:
Example 1: If I had multiplied my efforts by ten, I would have succeeded.
Example 2: She would be very rich if she had multiplied her investments by ten.
Example 3: We would have had more time if we had multiplied our speed by ten.

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

Pronoun Conjugation Example Usage English Translation
je aurais décuplé Si j’avais eu plus de temps, j’aurais décuplé mes efforts. If I had more time, I would have multiplied my efforts.
tu aurais décuplé Tu aurais décuplé tes économies si tu avais écouté mes conseils. You would have multiplied your savings if you had listened to my advice.
il aurait décuplé Il aurait décuplé ses forces pour gagner la course. He would have multiplied his strength to win the race.
elle aurait décuplé Elle aurait décuplé son talent en prenant des cours de chant. She would have multiplied her talent by taking singing lessons.
on aurait décuplé On aurait décuplé notre productivité avec un meilleur système de travail. We would have multiplied our productivity with a better work system.
nous aurions décuplé Nous aurions décuplé nos efforts si nous avions été mieux préparés. We would have multiplied our efforts if we had been better prepared.
vous auriez décuplé Vous auriez décuplé votre plaisir en venant avec nous. You would have multiplied your pleasure by coming with us.
ils auraient décuplé Ils auraient décuplé leur production en utilisant de nouvelles machines. They would have multiplied their production by using new machines.
elles auraient décuplé Elles auraient décuplé leurs chances en travaillant ensemble. They (female) would have multiplied their chances by working together.

Other Conjugations for Décupler.

    

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

    Imparfait (Imperfect) Tense Conjugation of the French Verb décupler
     

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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


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Décupler – 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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