1 The window is open.
2 Cats is small animals.
3 I am in the classroom.
4 We are pupils.
5 The baby is in bed.

Interogative

Is the window open?
Is cats small animals?
Am i in the classroom?
Are we pupils?
Is baby in bed?

negative

The window is not open.
Cats is not small animals.
I am not in the classroom.
We are not pupils.
Baby is not in bed.

6 You are a teacher.
7 Tom and Jimmy is friends.
8 They are at school.
9 Our family is in the dinig-room.
10 He is in the playground.

Interogative

Are you teacher?
Is Tom and Jimmy friends?
Are they at school?
Is our family in the dining-room?
Is he in the playground?

negative

You are not a teacher.
Tom and Jimmy is not friends.
They are not at school.
Our family is not in the dining-room.
He is not in the playground.