Correct: I am not, I'm not, You aren't, You are not, He is, He isn't, He is not, She isn't, She is not, We are not, We aren't, They are not, They aren't, Incorrect: I aren't, I not am, I isn't, I is not, I are not, You not are, You isn't, You is not, He not is, He are not, He aren't, She not is, She not are, She aren't, She are not, We is not, We isn't, We not is, We not are, They isn't, They is not, They not are, They not is,

To be - negative

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