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