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