I'd be nickering you'd be nickering he'd be nickering we'd be nickering you'd be nickering they'd be nickering
Perfect
I should've nickered you should've nickered he should've nickered we should've nickered you should've nickered they should've nickered
V-ing perfect
I should've been nickering you should've been nickering he should've been nickering we should've been nickering you should've been nickering they should've been nickering
Negation
Simple form
I shouldn't nicker you shouldn't nicker he shouldn't nicker we shouldn't nicker you shouldn't nicker they shouldn't nicker
V-ing form
I shouldn't be nickering you shouldn't be nickering he shouldn't be nickering we shouldn't be nickering you shouldn't be nickering they shouldn't be nickering
Perfect
I shouldn't have nickered you shouldn't have nickered he shouldn't have nickered we shouldn't have nickered you shouldn't have nickered they shouldn't have nickered
V-ing perfect
I shouldn't have been nickering you shouldn't have been nickering he shouldn't have been nickering we shouldn't have been nickering you shouldn't have been nickering they shouldn't have been nickering
Interrogative form
Simple form
should I nicker? should you nicker? should he nicker? should we nicker? should you nicker? should they nicker?
V-ing form
should I be nickering? should you be nickering? should he be nickering? should we be nickering? should you be nickering? should they be nickering?
Perfect
should I have nickered? should you have nickered? should he have nickered? should we have nickered? should you have nickered? should they have nickered?
V-ing perfect
should I have been nickering? should you have been nickering? should he have been nickering? should we have been nickering? should you have been nickering? should they have been nickering?
Interro-negative form
Simple form
shouldn't I nicker? shouldn't you nicker? shouldn't he nicker? shouldn't we nicker? shouldn't you nicker? shouldn't they nicker?
V-ing form
shouldn't I be nickering? shouldn't you be nickering? shouldn't he be nickering? shouldn't we be nickering? shouldn't you be nickering? shouldn't they be nickering?
Perfect
shouldn't I have nickered? shouldn't you have nickered? shouldn't he have nickered? shouldn't we have nickered? shouldn't you have nickered? shouldn't they have nickered?
V-ing perfect
shouldn't I have been nickering? shouldn't you have been nickering? shouldn't he have been nickering? shouldn't we have been nickering? shouldn't you have been nickering? shouldn't they have been nickering?