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

ByMichael Burns

Introduction to the verb déconner

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The English translation of the French verb déconner is “to joke around” or “to mess around.” It is pronounced as “day-co-nay” in its infinitive form.

Déconner comes from the combination of the prefix “dé,” meaning “down” or “off,” and the verb “conner,” which is a slang term meaning “to talk nonsense” or “to joke.” Déconner can also be seen as a variation of the word “déconner,” which means “to malfunction” or “to go crazy.”

In everyday French, déconner in the Conditionnel Passé tense is often used to express something that could have happened, but ultimately did not. It is used to talk about past hypothetical situations or events.

Here are three examples of déconner used in the Conditionnel Passé tense:

  1. Si j’avais pris cet avion, j’aurais déconné toute la soirée. (If I had taken that plane, I would have joked around all night.)

  2. Tu aurais mieux fait de ne pas déconner pendant le discours du président. (You should have refrained from joking around during the president’s speech.)

  3. Nous aurions déconné en chantant des chansons ridicules toute la nuit. (We would have messed around by singing silly songs all night.)

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

Pronoun Conjugation Example Usage English Translation
je aurais déconné Si j’avais su, j’aurais déconné. I would have messed around if I had known.
tu aurais déconné Tu aurais déconné à l’école. You would have goofed off at school.
il aurait déconné Il aurait déconné avec ses amis. He would have messed around with his friends.
elle aurait déconné Elle aurait déconné à la soirée. She would have messed around at the party.
on aurait déconné On aurait déconné toute la nuit. We would have messed around all night.
nous aurions déconné Nous aurions déconné ensemble. We would have messed around together.
vous auriez déconné Vous auriez déconné avec nous. You would have messed around with us.
ils auraient déconné Ils auraient déconné pendant les vacances. They would have goofed off during the holidays.
elles auraient déconné Elles auraient déconné en classe. They (female) would have goofed off in class.

Other Conjugations for Déconner.

    

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

    Imparfait (Imperfect) Tense Conjugation of the French Verb déconner
     

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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


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Déconner – 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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