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