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