Acheter belong to the 1
st group. Acheter is a very common french verb.
Acheter is conjugated the same way that verbs that end in :
-eter
Acheter is conjugated with
auxiliary avoir.
Acheter verb is
direct transitive, intransitive.
French verb acheter can be conjugated in the reflexive form:
S'acheter
Acheter verb is a direct transitive verb, so passive voice can be used.