Afirmativas:
I'm student.
You are beautiful.
They are your friends.
We are brothers.
She is my mother.
Negativas:
I'm not student.
You are not beautiful.
They are not your friends.
We are not brothers.
She is not my mother.
Interrogativas:
Am I student?
Are you beautiful?
Are they your friends?
Are we brothers ?
Is she my mother?
