Humilier belong to the 1st
group. Humilier is a common french verb.
Humilier is conjugated the same way that verbs that end in : -ier
Humilier is conjugated with auxiliary avoir
Humilier verb is
French verb humilier can be conjugated in the reflexive form: S'humilier
verb is a direct transitive verb, so passive voice can be used.
Note that humilier verb begin with a « h muet »