Aplanir belong to the 2
nd group. Aplanir is a common french verb.
Aplanir is conjugated the same way that verbs that end in :
-ir
Aplanir is conjugated with
auxiliary avoir.
Aplanir verb is direct transitive.
French verb aplanir can be conjugated in the reflexive form:
Aplanir verb is a direct transitive verb, so ive voice can be used.