1. I understand everything he says.
   I don't understand  everything he say.
   Do I understand everything he say?
2. She comes here at 5 o'clock
    She doesn't come here at 5 o'clock
    Does she come here at 5 o'clock?
3. I use my dictionary every day.
    I don't use my dictionary every day.
    Do I se my dictionary every day?
4. My cat likes milk.
    My cat doesn't like milk
    Does my cat like milk?
5. He eats in the cafeteria every day.
    He doesn't eat in the cafeteria every day.
    Does he eat in the cafeteria every day?