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