I'd be scrubbing you'd be scrubbing he'd be scrubbing we'd be scrubbing you'd be scrubbing they'd be scrubbing
Perfect
I should've scrubbed you should've scrubbed he 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 he 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 he 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 he 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 he 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 he 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 he scrub? should we scrub? should you scrub? should they scrub?
V-ing form
should I be scrubbing? should you be scrubbing? should he be scrubbing? should we be scrubbing? should you be scrubbing? should they be scrubbing?
Perfect
should I have scrubbed? should you have scrubbed? should he 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 he 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 he 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 he 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 he 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 he have been scrubbing? shouldn't we have been scrubbing? shouldn't you have been scrubbing? shouldn't they have been scrubbing?