TO BE (+)
He (be) happy.
He is happy.
Ahmed (be) intelligent?
Is Ahmed intelligent?
They (be) friends.
They are friends.
Your mother (be) a teacher?
Is your mother a teacher?
Tom and Jerry (be) enemies.
Tom and Jerry are enemies.
You (be) American?
Are you American?
This pencil case (be) new.
This pencil case is new.
It (be) your dog?
Is it your dog?
Maryam and I (be) at school.
Maryam and I are at school.
I (be) from Poland?
Am I from Poland?