Conjugation of french verb certifier in interrogative form

Certifier in passive voice Certifier in female form Ne pas certifier Remove the ?

Certifier belong to the 1^st group. Certifier is a common french verb.
Certifier is conjugated the same way that verbs that end in : -ier
Certifier is conjugated with auxiliary avoir.
Certifier verb is direct transitive.
Certifier verb is a direct transitive verb, so passive voice can be used.

Certifier is a french first group verb. So it follow the regular conjugation pattern of the first group like: aimer. Follow this link to see all the endings of the conjugation of the first group verbs : conjugation rules and endings for the first group verbs.

However, although the terminations are perfectly regular, stem can be irregular and have numerous variations.
Certifier is conjugated the same way that verbs that end in : -ier.

Certifier verb is conjugated in interrogative form. For sound reasons, an euphonious « t » is added to the pronoun of the third person: « il », « elle », « on », « ils », « elles » except when the verb ends with « t » or « d »: « certifie-t-il ? », « certifia-t-il ? », « certifiera-t-il ? », « a-t-il certifié ? », « aura-t-il certifié ? ».
Always in interrogative form, and always for sound reasons, an accent appears in first person present indicative tense when the verb ends with « e ». An euphonious « e » is replaced by « é »: « certifié-je ? ».
Finally, the interrogative form does not exist in subjunctive and imperative.

1. Certifier conjugation
2. Certifier french verb conjugation rules
3. Certifier conjugation in indicative
4. Certifier conjugation in subjunctive
5. Certifier conjugation in conditional
6. Certifier conjugation in imperative
7. Certifier french synonyms
8. Certifier french definition
9. Certifier conjugation in all forms
10. Certifier conjugation in all tenses
11. Certifier similar verbs conjugation
12. Common french verbs

This is the list of certifier french verb synonyms :

CERTIFIER : v. tr. Témoigner qu'une chose est vraie. Je vous certifie que cela est. Je puis vous le certifier.
Copie certifiée conforme à l'original, ou simplement Certifié conforme.

Here is the full list of verbs sharing the same verb conjugation :

List of verbs used as patterns in french conjugation:

French Auxiliaries Verbs

Most common first group verbs

Most common second group verbs

Most common third group verbs