1) It is usually warm in summer.

Usually it isn't warm in summer.

Is it usually warm in summer?

When Is it usually warm?

2) I am very lazy.

I'm not very lazy.

Am I am lazy?

Who is very lazy?

Why am I very lazy?

3) My pencils are green.

My pencils aren't green.

Are my pencils green?

Whose pencils are green?

4) A shark has got strong teeth.

A shark hasn't got strong teeth.

Who has got strong teeth?

What has a shark got?

5) My aunt and uncle have got two big dogs.

My aunt and uncle haven't got two big dogs.

Have my aunt and uncle got two big dogs?

Who has got two big dogs?

How many big dogs have my aunt and uncle got?