He is a doctor. Paul is clever. Dogs love to play.
He isn't a doctor. Paul isn't clever. Dogs don't love to play.
Is he a doctor? Is Paul clever? Do dogs love to play?
He is a doctor. Paul is clever. Dogs love to play.
He isn't a doctor. Paul isn't clever. Dogs don't love to play.
Is he a doctor? Is Paul clever? Do dogs love to play?