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