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