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