it is cold.
It isn't cold.
He is young.
He isn't young.
She is old.
She isn't old.
She is good.
She isn't good.
I am a teacher.
I am not a teacher.
She is thin.
She isn't thin.
It is a ball.
It isn't a ball.
He is tall.
He isn't tall.
He is strong.
He isn't strong.
It is a dog.
It isn't a dog.
It is hot.
it isn't hot.
She is ugly.
she isn't ugly.
Buzz is green.
Buzz isn't green.
He is handsome.
He isn't handsome