I would check you would check he would check we would check you would check they would check
V-ing form
I would be checking you would be checking he would be checking we would be checking you would be checking they would be checking
Perfect
I would have checked you would have checked he would have checked we would have checked you would have checked they would have checked
V-ing perfect
I would have been checking you would have been checking he would have been checking we would have been checking you would have been checking they would have been checking
Negation
Simple form
I would not check you would not check he would not check we would not check you would not check they would not check
V-ing form
I would not be checking you would not be checking he would not be checking we would not be checking you would not be checking they would not be checking
Perfect
I would not have checked you would not have checked he would not have checked we would not have checked you would not have checked they would not have checked
V-ing perfect
I would not have been checking you would not have been checking he would not have been checking we would not have been checking you would not have been checking they would not have been checking
Interrogative form
Simple form
would I check? would you check? would he check? would we check? would you check? would they check?
V-ing form
would I be checking? would you be checking? would he be checking? would we be checking? would you be checking? would they be checking?
Perfect
would I have checked? would you have checked? would he have checked? would we have checked? would you have checked? would they have checked?
V-ing perfect
would I have been checking? would you have been checking? would he have been checking? would we have been checking? would you have been checking? would they have been checking?
Interro-negative form
Simple form
would I not check? would you not check? would he not check? would we not check? would you not check? would they not check?
V-ing form
would I not be checking? would you not be checking? would he not be checking? would we not be checking? would you not be checking? would they not be checking?
Perfect
would I not have checked? would you not have checked? would he not have checked? would we not have checked? would you not have checked? would they not have checked?
V-ing perfect
would I not have been checking? would you not have been checking? would he not have been checking? would we not have been checking? would you not have been checking? would they not have been checking?