I should swap you should swap he should swap we should swap you should swap they should swap
V-ing form
I should be swaping you should be swaping he should be swaping we should be swaping you should be swaping they should be swaping
Perfect
I should have swaped you should have swaped he should have swaped we should have swaped you should have swaped they should have swaped
V-ing perfect
I should have been swaping you should have been swaping he should have been swaping we should have been swaping you should have been swaping they should have been swaping
Negation
Simple form
I should not swap you should not swap he should not swap we should not swap you should not swap they should not swap
V-ing form
I should not be swaping you should not be swaping he should not be swaping we should not be swaping you should not be swaping they should not be swaping
Perfect
I should not have swaped you should not have swaped he should not have swaped we should not have swaped you should not have swaped they should not have swaped
V-ing perfect
I should not have been swaping you should not have been swaping he should not have been swaping we should not have been swaping you should not have been swaping they should not have been swaping
Interrogative form
Simple form
should I swap? should you swap? should he swap? should we swap? should you swap? should they swap?
V-ing form
should I be swaping? should you be swaping? should he be swaping? should we be swaping? should you be swaping? should they be swaping?
Perfect
should I have swaped? should you have swaped? should he have swaped? should we have swaped? should you have swaped? should they have swaped?
V-ing perfect
should I have been swaping? should you have been swaping? should he have been swaping? should we have been swaping? should you have been swaping? should they have been swaping?
Interro-negative form
Simple form
should I not swap? should you not swap? should he not swap? should we not swap? should you not swap? should they not swap?
V-ing form
should I not be swaping? should you not be swaping? should he not be swaping? should we not be swaping? should you not be swaping? should they not be swaping?
Perfect
should I not have swaped? should you not have swaped? should he not have swaped? should we not have swaped? should you not have swaped? should they not have swaped?
V-ing perfect
should I not have been swaping? should you not have been swaping? should he not have been swaping? should we not have been swaping? should you not have been swaping? should they not have been swaping?