I should seine you should seine she should seine we should seine you should seine they should seine
V-ing form
I should be seining you should be seining she should be seining we should be seining you should be seining they should be seining
Perfect
I should have seined you should have seined she should have seined we should have seined you should have seined they should have seined
V-ing perfect
I should have been seining you should have been seining she should have been seining we should have been seining you should have been seining they should have been seining
Negation
Simple form
I should not seine you should not seine she should not seine we should not seine you should not seine they should not seine
V-ing form
I should not be seining you should not be seining she should not be seining we should not be seining you should not be seining they should not be seining
Perfect
I should not have seined you should not have seined she should not have seined we should not have seined you should not have seined they should not have seined
V-ing perfect
I should not have been seining you should not have been seining she should not have been seining we should not have been seining you should not have been seining they should not have been seining
Interrogative form
Simple form
should I seine? should you seine? should she seine? should we seine? should you seine? should they seine?
V-ing form
should I be seining? should you be seining? should she be seining? should we be seining? should you be seining? should they be seining?
Perfect
should I have seined? should you have seined? should she have seined? should we have seined? should you have seined? should they have seined?
V-ing perfect
should I have been seining? should you have been seining? should she have been seining? should we have been seining? should you have been seining? should they have been seining?
Interro-negative form
Simple form
should I not seine? should you not seine? should she not seine? should we not seine? should you not seine? should they not seine?
V-ing form
should I not be seining? should you not be seining? should she not be seining? should we not be seining? should you not be seining? should they not be seining?
Perfect
should I not have seined? should you not have seined? should she not have seined? should we not have seined? should you not have seined? should they not have seined?
V-ing perfect
should I not have been seining? should you not have been seining? should she not have been seining? should we not have been seining? should you not have been seining? should they not have been seining?