Conjugation of verb "To sleep"
Negative
He/She/It does not sleep.
Present Simple Continuous
Negative
He/She/It is not sleeping.
Negative
He/She/It was not sleeping.
Negative
He/She/It will not sleep.
Present Perfect Continuous
Affirmative
He/She/It has been sleeping.
Negative
I have not been sleeping.
You have not been sleeping.
We have not been sleeping.
He/She/It has not been sleeping.
You have not been sleeping.
They have not been sleeping.
Interrogative
Has he/she/it been sleeping?
Affirmative
He/She/It had been sleeping.
Negative
You had not been sleeping.
We had not been sleeping.
He/She/It had not been sleeping.
You had not been sleeping.
They had not been sleeping.
Interrogative
Had he/she/it been sleeping?
Affirmative
He/She/It will have slept.
Negative
He/She/It will not have slept.
They will not have slept.
Interrogative
Will he/she/it have slept?
Negative
He/She/It would not sleep.
Affirmative
He/She/It would have slept.
Negative
You would not have slept.
He/She/It would not have slept.
You would not have slept.
They would not have slept.
Interrogative
Would he/she/it have slept?