Bêtifier belong to the 1st
Bêtifier is conjugated the same way that verbs that end in : -ier
Bêtifier is conjugated with auxiliary avoir
Bêtifier verb is
direct transitive, intransitive.
French verb bêtifier can be conjugated in the reflexive form: Se bêtifier
verb is a direct transitive verb, so passive voice can be used.