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