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"I haven't sleep" vs "I haven't slept"

The correct phrase is 'I haven't slept.' 'Slept' is the past participle form of the verb 'sleep,' which is used after the auxiliary verb 'have' in present perfect constructions. 'I haven't sleep' is incorrect because 'sleep' is the base form of the verb and cannot be used in this context.

Last Updated: March 26, 2024

I haven't sleep

This phrase is incorrect in English.

I haven't slept

This phrase is correct and commonly used in English.

This phrase is used to indicate that the speaker has not slept at all in the past up to the present moment.

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