affirmative
I have a dog.
You have a beautiful flower.
We have a cake.
They have a new car.
He has a lamp on the desk.
negative
You don`t have books.
We don`t have many flowers.
I don`t have a pencil.
She doesn`t have a big car.
They don`t have a garden.
interrogative
Do you have my number?
Does he have a book?
Do they have potatoes?
Do I have a computer?
Do we have a beautiful story?