I'd be flickering you'd be flickering he'd be flickering we'd be flickering you'd be flickering they'd be flickering
Perfect
I should've flickered you should've flickered he should've flickered we should've flickered you should've flickered they should've flickered
V-ing perfect
I should've been flickering you should've been flickering he should've been flickering we should've been flickering you should've been flickering they should've been flickering
Negation
Simple form
I shouldn't flicker you shouldn't flicker he shouldn't flicker we shouldn't flicker you shouldn't flicker they shouldn't flicker
V-ing form
I shouldn't be flickering you shouldn't be flickering he shouldn't be flickering we shouldn't be flickering you shouldn't be flickering they shouldn't be flickering
Perfect
I shouldn't have flickered you shouldn't have flickered he shouldn't have flickered we shouldn't have flickered you shouldn't have flickered they shouldn't have flickered
V-ing perfect
I shouldn't have been flickering you shouldn't have been flickering he shouldn't have been flickering we shouldn't have been flickering you shouldn't have been flickering they shouldn't 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
shouldn't I flicker? shouldn't you flicker? shouldn't he flicker? shouldn't we flicker? shouldn't you flicker? shouldn't they flicker?
V-ing form
shouldn't I be flickering? shouldn't you be flickering? shouldn't he be flickering? shouldn't we be flickering? shouldn't you be flickering? shouldn't they be flickering?
Perfect
shouldn't I have flickered? shouldn't you have flickered? shouldn't he have flickered? shouldn't we have flickered? shouldn't you have flickered? shouldn't they have flickered?
V-ing perfect
shouldn't I have been flickering? shouldn't you have been flickering? shouldn't he have been flickering? shouldn't we have been flickering? shouldn't you have been flickering? shouldn't they have been flickering?