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