I am not/amn`t a pupil.
We have not/haven`t got a dog.
She does not/doesn`t plays tennis every day.
My sister is not/isn`t a student.
David was not/wasn`t busy yesterday.
I am not/amn`t a pupil.
We have not/haven`t got a dog.
She does not/doesn`t plays tennis every day.
My sister is not/isn`t a student.
David was not/wasn`t busy yesterday.