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