You ride your bike very fast.
You don't ride your bike very fast.
They do their homework together.
They don't do their homework together.
She is happy.
She isn't happy.
We learn Maths at school.
We don't learn Maths at school.
The cat always climbs up the tree.
The cat never climbs up the tree.
Sue works at the supermarket.
Sue doesn't work at the supermarket.
You look very sad.
You don't look very sad.
You live in London.
You don't live in London.
You are brother and sister.
You aren't brother and sister.
