They are eleven. Сделайте отрицание

They are eleven. - Им (есть) одиннадцать лет.

They are not (aren\'t) eleven. - Им не одиннадцать лет.

I am not = I\'m not.

You  are not = You\'re not.

He is not = He\'s not.

She is not = She\'s not.

It  is not = It\'s not.

We are not = We\'re not.

You are not = You\'re not.

They  are not = They\'re not.