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Alina
it isn't vs it's not Dear friends, What is grammatically correct, to use isn't or it's not .....? f.e. It's not a mistake. It isn't a mistake.

Answers · 2

3
Hello Alina, Both are grammatically correct. Either one can be used in the same situation. Is it a mistake? No, it's not a mistake. No, it isn't a mistake. No, it's not. No, it isn't. These are all good.

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