I should postpone you should postpone he should postpone we should postpone you should postpone they should postpone
V-ing form
I should be postponing you should be postponing he should be postponing we should be postponing you should be postponing they should be postponing
Perfect
I should have postponed you should have postponed he should have postponed we should have postponed you should have postponed they should have postponed
V-ing perfect
I should have been postponing you should have been postponing he should have been postponing we should have been postponing you should have been postponing they should have been postponing
Negation
Simple form
I should not postpone you should not postpone he should not postpone we should not postpone you should not postpone they should not postpone
V-ing form
I should not be postponing you should not be postponing he should not be postponing we should not be postponing you should not be postponing they should not be postponing
Perfect
I should not have postponed you should not have postponed he should not have postponed we should not have postponed you should not have postponed they should not have postponed
V-ing perfect
I should not have been postponing you should not have been postponing he should not have been postponing we should not have been postponing you should not have been postponing they should not have been postponing
Interrogative form
Simple form
should I postpone? should you postpone? should he postpone? should we postpone? should you postpone? should they postpone?
V-ing form
should I be postponing? should you be postponing? should he be postponing? should we be postponing? should you be postponing? should they be postponing?
Perfect
should I have postponed? should you have postponed? should he have postponed? should we have postponed? should you have postponed? should they have postponed?
V-ing perfect
should I have been postponing? should you have been postponing? should he have been postponing? should we have been postponing? should you have been postponing? should they have been postponing?
Interro-negative form
Simple form
should I not postpone? should you not postpone? should he not postpone? should we not postpone? should you not postpone? should they not postpone?
V-ing form
should I not be postponing? should you not be postponing? should he not be postponing? should we not be postponing? should you not be postponing? should they not be postponing?
Perfect
should I not have postponed? should you not have postponed? should he not have postponed? should we not have postponed? should you not have postponed? should they not have postponed?
V-ing perfect
should I not have been postponing? should you not have been postponing? should he not have been postponing? should we not have been postponing? should you not have been postponing? should they not have been postponing?