Acheter 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.
Acheter is conjugated the same way that verbs that end in :
-eter.
Except a few verbs like verb modeler, verbs in
-eler and
-eter add an extra
« l » or
« t » to the stem.
Acheter verb is conjugated in female form and in reflexive form. Be careful, the past participle of compound tenses must agree with the subject.
Acheter 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 »:
« achète-t-elle ? »,
« acheta-t-elle ? »,
« achètera-t-elle ? »,
« a-t-elle acheté ? »,
« aura-t-elle acheté ? ».
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 »:
« acheté-je ? ».
Finally, the interrogative form does not exist in subjunctive and imperative.
