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

ByMichael Burns

Introduction to the verb déchlorurer

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The English translation of the French verb déchlorurer is “to dechlorinate.” It is pronounced as “day-klor-yuh-ray.”

Déchlorurer comes from the combination of the prefix “de-” meaning “undo” or “remove” and the word “chlorure” which means “chloride.” It is a regular -er verb and is most often used in scientific or technical contexts to describe the process of removing chlorine from a substance or environment.

In everyday French, déchlorurer is commonly used in the Passé Composé tense, which is the French equivalent of the Present Perfect tense in English. This tense is used to describe actions that have been completed in the past and have a direct impact on the present.

3 examples of déchlorurer in the Passé Composé tense are:

  1. J’ai déchloruré l’eau de la piscine hier. (I have dechlorinated the pool water yesterday.)
  2. Nous avons déchloruré les échantillons d’eau du laboratoire. (We have dechlorinated the water samples from the laboratory.)
  3. Les techniciens ont déchloruré la zone contaminée. (The technicians have dechlorinated the contaminated area.)

Table of the Passé Composé (Present Perfect) Tense Conjugation of déchlorurer

Pronoun Conjugation Short Example English Translation
je ai déchloruré J’ai déchloruré l’eau. I dechlorinated the water.
tu as déchloruré Tu as déchloruré la piscine. You dechlorinated the pool.
il a déchloruré Il a déchloruré le sol. He dechlorinated the soil.
elle a déchloruré Elle a déchloruré la nappe phréatique. She dechlorinated the groundwater.
on a déchloruré On a déchloruré la zone contaminée. We dechlorinated the contaminated area.
nous avons déchloruré Nous avons déchloruré l’usine désaffectée. We dechlorinated the abandoned factory.
vous avez déchloruré Vous avez déchloruré le réservoir. You dechlorinated the tank.
ils ont déchloruré Ils ont déchloruré le bassin. They dechlorinated the basin.
elles ont déchloruré Elles ont déchloruré le fleuve. They dechlorinated the river.

Other Conjugations for Déchlorurer.

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

    Imparfait (Imperfect) Tense Conjugation of the French Verb déchlorurer
   

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

    Passé Composé (Present Perfect) Tense Conjugation of the French Verb déchlorurer    (this article)

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

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

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

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

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

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

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

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

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

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

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

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

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

    Struggling with French verbs or the language in general? Why not use our free French Grammar Checker – no registration required!
   

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Déchlorurer – About the French Passé Composé (Present Perfect) Tense

The French Passé Composé is a compound tense used to express actions or events that have been completed in the past. It is one of the most common past tenses in the French language and is typically used in everyday conversation to describe actions that occurred at a specific point in the past. The Passé Composé is constructed using an auxiliary verb (either “être” or “avoir”) and a past participle.

NOTE: To take a deep dive into all the French tenses then see our article on Mastering French Tense Conjugation.

Formation of the Passé Composé

Set the auxiliary verb with either

“être” – used with a select group of verbs (mostly intransitive verbs of motion, reflexive verbs, and some others) or
“avoir” – used with most other verbs. 

Conjugate the auxiliary verb

If using “être,” you must conjugate it in the present tense according to the subject of the sentence. 
Je suis, Tu es, Il est, Nous sommes, Vous êtes, Ils sont 
If using “avoir,” conjugate it according to the subject as well: 
J’ai, Tu as, Elle a, Nous avons, Vous avez, Ils ont.  

Add the past participle

For regular -er verbs, remove the -er ending and add -é (e.g., “parler” becomes “parlé”). 
For regular -ir verbs, remove the -ir ending and add -i (e.g., “finir” becomes “fini”). 
For regular -re verbs, remove the -re ending and add -u (e.g., “vendre” becomes “vendu”). 
For irregular verbs, you’ll need to learn the past participles individually, as they don’t follow a regular pattern.

Common everyday usage patterns

Narrating Past Events

The Passé Composé is used to talk about specific actions or events that took place in the past. For example: “Hier, j’ai mangé une pizza” (Yesterday, I ate a pizza). 

Sequential Actions

When describing a series of actions in the past, the Passé Composé is used. For example: “D’abord, je me suis réveillé, puis je suis allé travailler” (First, I woke up, then I went to work). 

Describing Completed Actions

It’s used to emphasize that an action has been completed, often with a specific time reference. For example: “Elle a terminé son travail à 18 heures” (She finished her work at 6 p.m.). 

Interactions with other tenses

Imperfect Tense

The Passé Composé is often used in conjunction with the imperfect tense when telling a story or describing past events. The Passé Composé is used for specific actions that occurred, while the imperfect is used for background information or ongoing actions. 
For example: “Il pleuvait quand j’ai sorti mon parapluie” (It was raining when I took out my umbrella).

Conditional and Future Tenses

The Passé Composé is used as a reference point in complex sentences to establish the sequence of events in relation to future or conditional actions. 
For example: “Quand il est arrivé, je lui ai donné ton message” (When he arrived, I gave him your message). 

Summary

The French Passé Composé is an essential tense for talking about completed actions in the past in everyday conversation. It’s important to master the choice of auxiliary verb and the past participle conjugation for various verbs to use it effectively.

I hope you enjoyed this article on the verb déchlorurer. Still in a learning mood? Check out another TOTALLY random French verb conjugation!

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