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