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