Als we ontkenningen willen maken met het werkwoord to be, zetten we het woord not achter de werkwoordsvorm.
I am -> I am not / I'm not
You are -> You are not / You're not / You aren't
He is -> He is not / He's not / He isn't
She is -> She is not / She's not / She isn't
It is -> It is not / It's not / It isn't
We are -> We are not / We're not / We aren't
They are -> They are not / They're not / They aren't