Question

forma negativa de:
They are my brothers
He is intelligent
I am a teacher
She is Brazilian
You are happy

Answer 1

They aren't my brothers.
He isn't intelligent.
I'm not a teacher.
She isn't brazilian.
You are not happy.

Answer 2

They are not my brothers. / They aren't my brothers.
He is not intelligent. / He isn't intelligent.
I am not a teacher. / I'm not a teacher.
She is not Brazilian. / She isn't Brazilian.
You are not happy.