Déduire 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.
Déduire verb is conjugated in female form and in reflexive form. Be careful, the past participle of compound tenses must agree with the subject.
Déduire verb is conjugated in negative form. The placement of the negative adverb follow the following rules:
- the adverb
« ne » is placed after the pronoun and before the verb.
- in simple tenses, the adverbs (
« ne ...pas »,
« ne...plus »,
« ne...jamais », etc...) surround the verb
déduire.
- in compound tenses or in ive voice, the negative adverbs surround the auxiliary.