I'd be quivering you'd be quivering she'd be quivering we'd be quivering you'd be quivering they'd be quivering
Perfect
I should've quivered you should've quivered she should've quivered we should've quivered you should've quivered they should've quivered
V-ing perfect
I should've been quivering you should've been quivering she should've been quivering we should've been quivering you should've been quivering they should've been quivering
Negation
Simple form
I shouldn't quiver you shouldn't quiver she shouldn't quiver we shouldn't quiver you shouldn't quiver they shouldn't quiver
V-ing form
I shouldn't be quivering you shouldn't be quivering she shouldn't be quivering we shouldn't be quivering you shouldn't be quivering they shouldn't be quivering
Perfect
I shouldn't have quivered you shouldn't have quivered she shouldn't have quivered we shouldn't have quivered you shouldn't have quivered they shouldn't have quivered
V-ing perfect
I shouldn't have been quivering you shouldn't have been quivering she shouldn't have been quivering we shouldn't have been quivering you shouldn't have been quivering they shouldn't have been quivering
Interrogative form
Simple form
should I quiver? should you quiver? should she quiver? should we quiver? should you quiver? should they quiver?
V-ing form
should I be quivering? should you be quivering? should she be quivering? should we be quivering? should you be quivering? should they be quivering?
Perfect
should I have quivered? should you have quivered? should she have quivered? should we have quivered? should you have quivered? should they have quivered?
V-ing perfect
should I have been quivering? should you have been quivering? should she have been quivering? should we have been quivering? should you have been quivering? should they have been quivering?
Interro-negative form
Simple form
shouldn't I quiver? shouldn't you quiver? shouldn't she quiver? shouldn't we quiver? shouldn't you quiver? shouldn't they quiver?
V-ing form
shouldn't I be quivering? shouldn't you be quivering? shouldn't she be quivering? shouldn't we be quivering? shouldn't you be quivering? shouldn't they be quivering?
Perfect
shouldn't I have quivered? shouldn't you have quivered? shouldn't she have quivered? shouldn't we have quivered? shouldn't you have quivered? shouldn't they have quivered?
V-ing perfect
shouldn't I have been quivering? shouldn't you have been quivering? shouldn't she have been quivering? shouldn't we have been quivering? shouldn't you have been quivering? shouldn't they have been quivering?