Conjugation of verb "To sleep"
Present Simple Continuous
Negative
He/She/It isn't sleeping.
Negative
He/She/It wasn't sleeping.
Present Perfect Continuous
Affirmative
He/She/It's been sleeping.
Negative
You haven't been sleeping.
We haven't been sleeping.
He/She/It hasn't been sleeping.
You haven't been sleeping.
They haven't been sleeping.
Interrogative
Has he/she/it been sleeping?
Affirmative
He/She/It'd been sleeping.
Negative
You hadn't been sleeping.
He/She/It hadn't been sleeping.
You hadn't been sleeping.
They hadn't been sleeping.
Interrogative
Had he/she/it been sleeping?
Negative
He/She/It won't have slept.
Interrogative
Will he/she/it have slept?
Negative
He/She/It wouldn't sleep.
Negative
He/She/It wouldn't have slept.
They wouldn't have slept.
Interrogative
Would he/she/it have slept?