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

ByMichael Burns

Introduction to the verb diphtonguer

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The English translation of the French verb diphtonguer is “to diphthongize.” It is pronounced as “deeftong-geh.”

The word diphtonguer comes from the French word “diphtongue,” which means “diphthong.” It is used to refer to the action of creating a diphthong, which is a combination of two vowel sounds in one syllable.

In everyday French, diphtonguer is most often used in the Subjonctif Plus-que-parfait tense. This tense is used to express a hypothetical or unreal action that took place before another past action. In this tense, diphtonguer is conjugated as “aie diphtongué” for the first person singular, “aies diphtongué” for the second person singular, “ait diphtongué” for the third person singular, “ayons diphtongué” for the first person plural, “ayez diphtongué” for the second person plural, and “aient diphtongué” for the third person plural.

Here are three simple examples of diphtonguer used in the Subjonctif Plus-que-parfait tense with their English translations:

  1. J’aurais aimé que tu aies diphtongué ce mot. (I wish you had diphthongized this word.)
  2. Il était possible qu’elle ait diphtongué les voyelles. (It was possible that she had diphthongized the vowels.)
  3. Nous aurions aimé que vous ayez diphtongué ces deux sons. (We would have liked you to have diphthongized these two sounds.)

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

Pronoun Conjugation Example Usage English Translation
je eusse diphtongué J’aurais préféré que je eusse diphtongué. I would have preferred to have diphthongized.
tu eusses diphtongué J’aurais préféré que tu eusses diphtongué. I would have preferred you had diphthongized.
il eût diphtongué J’aurais préféré qu’il eût diphtongué. I would have preferred he had diphthongized.
elle eût diphtongué J’aurais préféré qu’elle eût diphtongué. I would have preferred she had diphthongized.
on eût diphtongué J’aurais préféré qu’on eût diphtongué. I would have preferred one had diphthongized.
nous eussions diphtongué J’aurais préféré que nous eussions diphtongué. I would have preferred we had diphthongized.
vous eussiez diphtongué J’aurais préféré que vous eussiez diphtongué. I would have preferred you had diphthongized.
ils eussent diphtongué J’aurais préféré qu’ils eussent diphtongué. I would have preferred they had diphthongized.
elles eussent diphtongué J’aurais préféré qu’elles eussent diphtongué. I would have preferred they had diphthongized.

Other Conjugations for Diphtonguer.

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

    Imparfait (Imperfect) Tense Conjugation of the French Verb diphtonguer
   

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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Diphtonguer – 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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