Subjonctif Plus-que-parfait (Subjunctive Pluperfect) Tense Conjugation of the French Verb déméthaniser
Introduction to the verb déméthaniser
The English translation of the French verb déméthaniser is “to demethanize.” It is pronounced as “day-meh-tah-nee-zay.”
The verb déméthaniser is composed of two parts: “dé,” which is a prefix meaning “remove” or “undo,” and “méthaniser,” which is derived from the noun “méthane,” meaning methane. It was first used in the late 19th century in the field of chemistry, specifically in the process of removing methane from a substance.
In everyday French, the verb déméthaniser is most often used in the Subjonctif Plus-que-parfait tense to express an action that was supposed to have happened in the past but did not. This tense is formed with the auxiliary verb “avoir” or “être” in the Plus-que-parfait tense and the past participle of the verb.
Here are three simple examples of its usage in the Subjonctif Plus-que-parfait tense with their English translations:
- Il fallait que nous ayons déméthanisé le sol avant la construction. (It was necessary for us to have demethanized the soil before construction.)
- J’aurais préféré que tu aies déméthanisé le gaz avant de l’utiliser. (I would have preferred for you to have demethanized the gas before using it.)
- Il est dommage que vous ayez déméthanisé cette source d’énergie renouvelable. (It is a shame that you have demethanized this renewable energy source.)
Table of the Subjonctif Plus-que-parfait (Subjunctive Pluperfect) Tense Conjugation of déméthaniser
Pronoun | Conjugation | Example Usage | English Translation |
---|---|---|---|
je | eusse déméthanisé | Il aurait été mieux que je eusse déméthanisé. | It would have been better if I had demethanized. |
tu | eusses déméthanisé | Il aurait été mieux que tu eusses déméthanisé. | It would have been better if you had demethanized. |
il | eût déméthanisé | Il aurait été mieux qu’il eût déméthanisé. | It would have been better if he had demethanized. |
elle | eût déméthanisé | Il aurait été mieux qu’elle eût déméthanisé. | It would have been better if she had demethanized. |
on | eût déméthanisé | Il aurait été mieux qu’on eût déméthanisé. | It would have been better if one had demethanized. |
nous | eussions déméthanisé | Il aurait été mieux que nous eussions déméthanisé. | It would have been better if we had demethanized. |
vous | eussiez déméthanisé | Il aurait été mieux que vous eussiez déméthanisé. | It would have been better if you had demethanized. |
ils | eussent déméthanisé | Il aurait été mieux qu’ils eussent déméthanisé. | It would have been better if they had demethanized. |
elles | eussent déméthanisé | Il aurait été mieux qu’elles eussent déméthanisé. | It would have been better if they had demethanized. |
Other Conjugations for Déméthaniser.
Le Present (Present Tense) Conjugation of the French Verb déméthaniser
Imparfait (Imperfect) Tense Conjugation of the French Verb déméthaniser
Passé Simple (Simple Past) Tense Conjugation of the French Verb déméthaniser
Passé Composé (Present Perfect) Tense Conjugation of the French Verb déméthaniser
Futur Simple (Simple Future) Tense Conjugation of the French Verb déméthaniser
Futur Proche (Near Future) Tense Conjugation of the French Verb déméthaniser
Plus-que-parfait (Pluperfect) Tense Conjugation of the French Verb déméthaniser
Passé Antérieur (Past Anterior) Tense Conjugation of the French Verb déméthaniser
Futur Antérieur (Future Anterior) Tense Conjugation of the French Verb déméthaniser
Subjonctif Présent (Subjunctive Present) Tense Conjugation of the French Verb déméthaniser
Subjonctif Passé (Subjunctive Past) Tense Conjugation of the French Verb déméthaniser
Subjonctif Imparfait (Subjunctive Imperfect) Tense Conjugation of the French Verb déméthaniser
Conditionnel Présent (Conditional Present) Tense Conjugation of the French Verb déméthaniser
Conditionnel Passé (Conditional Past) Tense Conjugation of the French Verb déméthaniser
L’impératif Présent (Imperative Present) Tense Conjugation of the French Verb déméthaniser
L’infinitif Présent (Infinitive Present) Tense Conjugation of the French Verb déméthaniser
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Déméthaniser – About the French Subjonctif Plus-que-parfait (Subjunctive Pluperfect) Tense
Formation
Common Everyday Usage Patterns
Hypothetical Situations
Reported Speech
Doubt, Wishes, and Emotions
Interactions with Other Tenses
Present Subjunctive
Imperfect Subjunctive
Conditional
Summary
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