I do morning exercises. I don't do morning exercises. Do I do morning exercises?
He works at a factory. He doesn't work at a factory. Does he work at a factory?
She sleeps after dinner. She doesn't sleep after dinner. Does she sleep after dinner?
We work part-time. We don't work part-time. Do we work part-time?
They drink tea every day. They don't drink tea every day. Do they drink tea every day?
Mike is a student. Mike isn't a student. Is Mike a student?
Helen has a car. Helen doesn't have a car. Does Helen have a car?
You are a good friend. You aren't a good friend. Are you a good friend?
You are good friends. You aren't good friends. Are you good friends?
It is difficult to remember everything. It isn't difficult to remember everything. Is it difficult to remember everything?