I'd down you'd down he'd down we'd down you'd down they'd down
V-ing form
I'd be downing you'd be downing he'd be downing we'd be downing you'd be downing they'd be downing
Perfect
I should've downed you should've downed he should've downed we should've downed you should've downed they should've downed
V-ing perfect
I should've been downing you should've been downing he should've been downing we should've been downing you should've been downing they should've been downing
Negation
Simple form
I shouldn't down you shouldn't down he shouldn't down we shouldn't down you shouldn't down they shouldn't down
V-ing form
I shouldn't be downing you shouldn't be downing he shouldn't be downing we shouldn't be downing you shouldn't be downing they shouldn't be downing
Perfect
I shouldn't have downed you shouldn't have downed he shouldn't have downed we shouldn't have downed you shouldn't have downed they shouldn't have downed
V-ing perfect
I shouldn't have been downing you shouldn't have been downing he shouldn't have been downing we shouldn't have been downing you shouldn't have been downing they shouldn't have been downing
Interrogative form
Simple form
should I down? should you down? should he down? should we down? should you down? should they down?
V-ing form
should I be downing? should you be downing? should he be downing? should we be downing? should you be downing? should they be downing?
Perfect
should I have downed? should you have downed? should he have downed? should we have downed? should you have downed? should they have downed?
V-ing perfect
should I have been downing? should you have been downing? should he have been downing? should we have been downing? should you have been downing? should they have been downing?
Interro-negative form
Simple form
shouldn't I down? shouldn't you down? shouldn't he down? shouldn't we down? shouldn't you down? shouldn't they down?
V-ing form
shouldn't I be downing? shouldn't you be downing? shouldn't he be downing? shouldn't we be downing? shouldn't you be downing? shouldn't they be downing?
Perfect
shouldn't I have downed? shouldn't you have downed? shouldn't he have downed? shouldn't we have downed? shouldn't you have downed? shouldn't they have downed?
V-ing perfect
shouldn't I have been downing? shouldn't you have been downing? shouldn't he have been downing? shouldn't we have been downing? shouldn't you have been downing? shouldn't they have been downing?