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