I should flicker you should flicker he should flicker we should flicker you should flicker they should flicker
V-ing form
I should be flickering you should be flickering he should be flickering we should be flickering you should be flickering they should be flickering
Perfect
I should have flickered you should have flickered he should have flickered we should have flickered you should have flickered they should have flickered
V-ing perfect
I should have been flickering you should have been flickering he should have been flickering we should have been flickering you should have been flickering they should have been flickering
Negation
Simple form
I should not flicker you should not flicker he should not flicker we should not flicker you should not flicker they should not flicker
V-ing form
I should not be flickering you should not be flickering he should not be flickering we should not be flickering you should not be flickering they should not be flickering
Perfect
I should not have flickered you should not have flickered he should not have flickered we should not have flickered you should not have flickered they should not have flickered
V-ing perfect
I should not have been flickering you should not have been flickering he should not have been flickering we should not have been flickering you should not have been flickering they should not have been flickering
Interrogative form
Simple form
should I flicker? should you flicker? should he flicker? should we flicker? should you flicker? should they flicker?
V-ing form
should I be flickering? should you be flickering? should he be flickering? should we be flickering? should you be flickering? should they be flickering?
Perfect
should I have flickered? should you have flickered? should he have flickered? should we have flickered? should you have flickered? should they have flickered?
V-ing perfect
should I have been flickering? should you have been flickering? should he have been flickering? should we have been flickering? should you have been flickering? should they have been flickering?
Interro-negative form
Simple form
should I not flicker? should you not flicker? should he not flicker? should we not flicker? should you not flicker? should they not flicker?
V-ing form
should I not be flickering? should you not be flickering? should he not be flickering? should we not be flickering? should you not be flickering? should they not be flickering?
Perfect
should I not have flickered? should you not have flickered? should he not have flickered? should we not have flickered? should you not have flickered? should they not have flickered?
V-ing perfect
should I not have been flickering? should you not have been flickering? should he not have been flickering? should we not have been flickering? should you not have been flickering? should they not have been flickering?