que j'eusse contrevenu que tu eusses contrevenu qu'il eût contrevenu que nous eussions contrevenu que vous eussiez contrevenu qu'ils eussent contrevenu
Contrevenir belong to the 3rd group. Contrevenir is a common french verb.
Contrevenir is conjugated the same way that verbs that end in : -enir
Contrevenir is conjugated with auxiliary avoir.
Contrevenir verb is
indirect transitive.
Contrevenir 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.
CONTREVENIR : v. intr. Agir contre quelque loi, quelque défense, quelque ordre, etc., ou contre quelque obligation que l'on a contractée. Contrevenir aux commandements de Dieu, au précepte de la charité. Contrevenir aux règlements de police. Contrevenir à une clause du contrat, du traité.