I'd be busking you'd be busking she'd be busking we'd be busking you'd be busking they'd be busking
Perfect
I should've busked you should've busked she 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 she 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 she 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 she 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 she 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 she 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 she busk? should we busk? should you busk? should they busk?
V-ing form
should I be busking? should you be busking? should she be busking? should we be busking? should you be busking? should they be busking?
Perfect
should I have busked? should you have busked? should she 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 she 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 she 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 she 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 she 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 she have been busking? shouldn't we have been busking? shouldn't you have been busking? shouldn't they have been busking?