Learn negatives - English gramma

Simple Present - negative sentences

do/does + not + infinitive (don't - short form, do not - long form)

I do not know it.   I don't know it. (long form / short form)
We do not know it.   We don't know it. (long form / short form)
He does not know it.   He doesn't know it. (long form / short form)

English Simple present negatives

Simple present negatives with free online exercises. Online exercises, questions and negative sentences.

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English grammar easy to learn. Simple present matching exercises, quizzes and riddles - English word order.