Guérir belong to the 2nd
group. Guérir is a common french verb.
Guérir is conjugated the same way that verbs that end in : -ir
Guérir is conjugated with auxiliary avoir
Guérir verb is
direct transitive, intransitive.
French verb guérir can be conjugated in the reflexive form: Se guérir
verb is a direct transitive verb, so passive voice can be used.