You're in my class (-)
You aren't in my class.
You're a teacher (?)
Are you a teacher?
I'm Jenny. (-)
I'm not Jenny.
I'm in room 311. (?)
Am I in room 311?
You're Michele. (?)
Are you Michele?
They're from Brazil. (?)
Are they from Brazil?
He's not Chinese. (?)
Is he Chinese?
He's from Switzerland. (?)
Is he from Switzerland?
You're not tired. (?)
Are you tired?
Are you from Poland? (-)
You're not from Poland. / You aren't from Poland.
Is Leo Di Caprio from Berlin? (-)
He isn't from Berlin.
cats / happy (+)
Cats are happy.
She / like / cola (-)
She doesn't like cola.
