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

ByMichael Burns

Introduction to the verb désinsectiser

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The English translation of the French verb désinsectiser is “to disinsect” or “to exterminate insects.” It is pronounced “day-zen-sek-tee-zay.”

The word désinsectiser is made up of the prefix “dé-” which means “to remove” or “to undo,” the noun “insecte” which means “insect,” and the suffix “-iser” which means “to make into” or “to cause to become.” Therefore, the literal meaning of désinsectiser is “to make into a non-insect.”

In everyday French, désinsectiser is most often used in the Subjonctif Plus-que-parfait tense, which is a past tense that expresses a hypothetical or unreal action that took place before another action in the past. It is often used in formal or legal contexts, such as when discussing pest control measures.

Three examples of its usage in this tense are:

  1. J’avais désinsectisé la maison avant que les invités n’arrivent. (I had disinfected the house before the guests arrived.)
  2. Le propriétaire avait désinsectisé l’appartement avant que les locataires ne s’installent. (The landlord had exterminated insects in the apartment before the tenants moved in.)
  3. Nous avions désinsectisé les jardins avant que les plantes ne soient endommagées. (We had eliminated insects in the gardens before the plants were damaged.)

Overall, désinsectiser is a verb that is used to describe the action of getting rid of or preventing insects. It is commonly used in formal or technical contexts, but can also be used in everyday speech.

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

Pronoun Conjugation Example Usage English Translation
je eusse désinsectisé Il était important que je eusse désinsectisé. It was important that I had disinfected.
tu eusses désinsectisé Il était important que tu eusses désinsectisé. It was important that you had disinfected.
il eût désinsectisé Il était important qu’il eût désinsectisé. It was important that he had disinfected.
elle eût désinsectisé Il était important qu’elle eût désinsectisé. It was important that she had disinfected.
on eût désinsectisé Il était important qu’on eût désinsectisé. It was important that one had disinfected.
nous eussions désinsectisé Il était important que nous eussions désinsectisé. It was important that we had disinfected.
vous eussiez désinsectisé Il était important que vous eussiez désinsectisé. It was important that you had disinfected.
ils eussent désinsectisé Il était important qu’ils eussent désinsectisé. It was important that they had disinfected.
elles eussent désinsectisé Il était important qu’elles eussent désinsectisé. It was important that they had disinfected.

Other Conjugations for Désinsectiser.

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

    Imparfait (Imperfect) Tense Conjugation of the French Verb désinsectiser
   

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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Désinsectiser – 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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