Annoncer belong to the 1
st group. Annoncer is a common french verb.
Annoncer is conjugated the same way that verbs that end in :
-cer
Annoncer is conjugated with
auxiliary avoir.
Annoncer verb is
direct transitive.
French verb annoncer can be conjugated in the reflexive form:
S'annoncer
Annoncer verb is a direct transitive verb, so passive voice can be used.