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