придумайте 3 предложения в Present Continuous и каждое из них поставьте в утвердительную, отрицательную и вопросительную форму

1) He is reading a book.
He isn't reading a book.
is he reading a book?
2) they are sleeping .
They aren't sleeping
Are they sleeping?
3)My mother is cooking.
My mother isn't cooking.
Is my mother cooking?