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

ByMichael Burns

Introduction to the verb dératiser

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The English translation of the French verb dératiser is “to exterminate rats” or “to rat-proof.” It is pronounced “day-rah-tee-zay” in the infinitive form.

The word dératiser comes from the French prefix “dé-” which means “remove” or “undo” and the word “rat” which comes from the Latin word “rattus.” It is most often used in everyday French to refer to the act of getting rid of or preventing rats from infesting an area.

In the Subjonctif Plus-que-parfait tense, dératiser is used to express actions that are hypothetical or conditional in the past. It is formed by using the auxiliary verb “avoir” or “être” in the subjonctif imparfait tense and adding the past participle of dératiser.

Example 1: Il fallait que nous eussions dératisé la maison avant l’arrivée des invités.
English translation: We should have exterminated the rats in the house before the arrival of the guests.

Example 2: Si vous aviez dératisé le grenier, les souris ne seraient pas entrées dans la cuisine.
English translation: If you had rat-proofed the attic, the mice wouldn’t have entered the kitchen.

Example 3: J’aurais aimé que vous eussiez dératisé la cave avant que je m’en rende compte.
English translation: I wish you had exterminated the rats in the cellar before I found out.

Table of the Subjonctif Plus-que-parfait (Subjunctive Pluperfect) Tense Conjugation of dératiser

Pronoun Conjugation Example Usage English Translation
je eusse dératisé Il aurait fallu que je eusse dératisé. I wish I had exterminated.
tu eusses dératisé Il aurait fallu que tu eusses dératisé. I wish you had exterminated.
il eût dératisé Il aurait fallu qu’il eût dératisé. I wish he had exterminated.
elle eût dératisé Il aurait fallu qu’elle eût dératisé. I wish she had exterminated.
on eût dératisé Il aurait fallu qu’on eût dératisé. I wish one had exterminated.
nous eussions dératisé Il aurait fallu que nous eussions dératisé. I wish we had exterminated.
vous eussiez dératisé Il aurait fallu que vous eussiez dératisé. I wish you had exterminated.
ils eussent dératisé Il aurait fallu qu’ils eussent dératisé. I wish they had exterminated.
elles eussent dératisé Il aurait fallu qu’elles eussent dératisé. I wish they had exterminated.

Other Conjugations for Dératiser.

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

    Imparfait (Imperfect) Tense Conjugation of the French Verb dératiser
   

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

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

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

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

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

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

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

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

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

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

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

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

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

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

    L’infinitif Présent (Infinitive Present) Tense Conjugation of the French Verb dératiser
    (this article)

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Dératiser – About the French Subjonctif Plus-que-parfait (Subjunctive Pluperfect) Tense

The French Subjonctif Plus-que-parfait, also known as the Pluperfect Subjunctive, is a verb tense used to express actions or states that occurred before another action in the past, and it’s used in situations where the indicative mood is in the past subjunctive or conditional mood.
NOTE: To take a deep dive into all the French tenses then see my article on Mastering French Tense Conjugation.

Formation

To form the Subjonctif Plus-que-parfait, you start with the imperfect subjunctive form of the auxiliary verb “avoir” or “être,” followed by the past participle of the main verb. 
For “avoir” verbs: Take the imperfect subjunctive form of “avoir” (e.g., j’eusse, tu eusses, il/elle eût, nous eussions, vous eussiez, ils/elles eussent). Add the past participle of the main verb. 
For “être” verbs: Take the imperfect subjunctive form of “être” (e.g., je fusse, tu fusses, il/elle fût, nous fussions, vous fussiez, ils/elles fussent). Add the past participle of the main verb.

Common Everyday Usage Patterns

Hypothetical Situations

The Subjonctif Plus-que-parfait is often used to express hypothetical or unreal actions that occurred before another past action.
For example: J’aurais aimé que tu aies fini ton travail avant que je sois arrivé. (I would have liked for you to have finished your work before I arrived.) 

Reported Speech

In reported speech, you may use the Subjonctif Plus-que-parfait to convey what someone said or thought in the past. 
For example: Il m’a dit qu’il avait peur que je n’aie pas compris. (He told me that he was afraid that I hadn’t understood.) 

Doubt, Wishes, and Emotions

This tense can also be used to express doubt, wishes, and emotions about past actions. 
For example: Je doutais qu’il eût dit la vérité. (I doubted that he had told the truth.) 
J’aurais souhaité que tu fusses venu. (I would have wished for you to have come.)

Interactions with Other Tenses

Present Subjunctive

The Subjonctif Plus-que-parfait can be used to describe past actions when the main verb is in the present subjunctive. 
For example: “Il faut que j’aie fini mon travail avant que tu partes.” (I must have finished my work before you leave.) 

Imperfect Subjunctive

It’s common to use the Subjonctif Plus-que-parfait with the imperfect subjunctive in complex sentences. 
For example: “Il m’avait dit qu’il fût rentré avant la fin de la journée.” (He had told me that he had returned before the end of the day.) 

Conditional

When the main verb is in the conditional mood, the Subjonctif Plus-que-parfait can be used to express past unreal conditions. 
For example: “Si j’avais su, j’aurais voulu que tu aies réussi.” (If I had known, I would have wanted you to have succeeded.)

Summary

The Subjonctif Plus-que-parfait is a complex tense used to convey nuanced meanings in French. While its usage may seem intricate, it becomes more intuitive with practice and exposure to the language. It’s important to understand the context in which it’s used, as it often conveys subtleties of time, conditionality, and emotion in French sentences.

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