I'd be french-polishing you'd be french-polishing he'd be french-polishing we'd be french-polishing you'd be french-polishing they'd be french-polishing
Perfect
I should've french-polished you should've french-polished he should've french-polished we should've french-polished you should've french-polished they should've french-polished
V-ing perfect
I should've been french-polishing you should've been french-polishing he should've been french-polishing we should've been french-polishing you should've been french-polishing they should've been french-polishing
Negation
Simple form
I shouldn't french-polish you shouldn't french-polish he shouldn't french-polish we shouldn't french-polish you shouldn't french-polish they shouldn't french-polish
V-ing form
I shouldn't be french-polishing you shouldn't be french-polishing he shouldn't be french-polishing we shouldn't be french-polishing you shouldn't be french-polishing they shouldn't be french-polishing
Perfect
I shouldn't have french-polished you shouldn't have french-polished he shouldn't have french-polished we shouldn't have french-polished you shouldn't have french-polished they shouldn't have french-polished
V-ing perfect
I shouldn't have been french-polishing you shouldn't have been french-polishing he shouldn't have been french-polishing we shouldn't have been french-polishing you shouldn't have been french-polishing they shouldn't have been french-polishing
Interrogative form
Simple form
should I french-polish? should you french-polish? should he french-polish? should we french-polish? should you french-polish? should they french-polish?
V-ing form
should I be french-polishing? should you be french-polishing? should he be french-polishing? should we be french-polishing? should you be french-polishing? should they be french-polishing?
Perfect
should I have french-polished? should you have french-polished? should he have french-polished? should we have french-polished? should you have french-polished? should they have french-polished?
V-ing perfect
should I have been french-polishing? should you have been french-polishing? should he have been french-polishing? should we have been french-polishing? should you have been french-polishing? should they have been french-polishing?
Interro-negative form
Simple form
shouldn't I french-polish? shouldn't you french-polish? shouldn't he french-polish? shouldn't we french-polish? shouldn't you french-polish? shouldn't they french-polish?
V-ing form
shouldn't I be french-polishing? shouldn't you be french-polishing? shouldn't he be french-polishing? shouldn't we be french-polishing? shouldn't you be french-polishing? shouldn't they be french-polishing?
Perfect
shouldn't I have french-polished? shouldn't you have french-polished? shouldn't he have french-polished? shouldn't we have french-polished? shouldn't you have french-polished? shouldn't they have french-polished?
V-ing perfect
shouldn't I have been french-polishing? shouldn't you have been french-polishing? shouldn't he have been french-polishing? shouldn't we have been french-polishing? shouldn't you have been french-polishing? shouldn't they have been french-polishing?