he thinks he is
He thinks he's a hero.
Il se prend pour le Robin des Bois des Dalits.
He fancies himself the Robin Hood of the Dalits.
— Article 15 (2019)
He thinks he's an artist.
Il se prend pour qui, votre Superrésistant ?
Who does your Superresistant think he is?
— Gramps Is in the Resistance (1983)
Il se prend pour qui, ce type ?
Who does this guy think he is?
He thinks he's God.
Il se prend pour Don Corleone ou quoi ?
Does he think he's Don Corleone or something?
— Do the Right Thing (1989)