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