Redevenir belong to the 3rd group. Redevenir is a common french verb.
Redevenir is conjugated the same way that verbs that end in : -enir
Redevenir is conjugated with auxiliary être.
Redevenir verb is
Redevenir is a french third group verb. So, this verb is irregular and do not follow a regular conjugation pattern like first or second group verbs. Follow this link to see all the endings of the conjugation of most of the third group verbs : conjugation rules and endings for the second group verbs.
Verbs derived from tenir and venir form a major group of verbs who gains a d in the future and conditional. These verbs are the only verb to have a nasal vowel in the past historic and imperfect subjunctive.