Aggraver

 French ER verb :
"Aggraver" Conjugation table in French :

Infinitive : aggraver
Past Participle - aggravé
Gerund - en aggravant
Imperative - aggrave (tu)
                       aggravons (nous)
                       aggravez (vous)
Aggraver is a regular verb
Aggraver is a 1st group verb

Auxiliary verb used with aggraver : avoir