I should paper you should paper he should paper we should paper you should paper they should paper
V-ing form
I should be papering you should be papering he should be papering we should be papering you should be papering they should be papering
Perfect
I should have papered you should have papered he should have papered we should have papered you should have papered they should have papered
V-ing perfect
I should have been papering you should have been papering he should have been papering we should have been papering you should have been papering they should have been papering
Negation
Simple form
I should not paper you should not paper he should not paper we should not paper you should not paper they should not paper
V-ing form
I should not be papering you should not be papering he should not be papering we should not be papering you should not be papering they should not be papering
Perfect
I should not have papered you should not have papered he should not have papered we should not have papered you should not have papered they should not have papered
V-ing perfect
I should not have been papering you should not have been papering he should not have been papering we should not have been papering you should not have been papering they should not have been papering
Interrogative form
Simple form
should I paper? should you paper? should he paper? should we paper? should you paper? should they paper?
V-ing form
should I be papering? should you be papering? should he be papering? should we be papering? should you be papering? should they be papering?
Perfect
should I have papered? should you have papered? should he have papered? should we have papered? should you have papered? should they have papered?
V-ing perfect
should I have been papering? should you have been papering? should he have been papering? should we have been papering? should you have been papering? should they have been papering?
Interro-negative form
Simple form
should I not paper? should you not paper? should he not paper? should we not paper? should you not paper? should they not paper?
V-ing form
should I not be papering? should you not be papering? should he not be papering? should we not be papering? should you not be papering? should they not be papering?
Perfect
should I not have papered? should you not have papered? should he not have papered? should we not have papered? should you not have papered? should they not have papered?
V-ing perfect
should I not have been papering? should you not have been papering? should he not have been papering? should we not have been papering? should you not have been papering? should they not have been papering?