English verb conjugation
SHOULD DOWN

Regular verb: down - downed - downed

Affirmation

Simple form	V-ing form
I'd down you'd down he'd down we'd down you'd down they'd down	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	V-ing 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	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	V-ing 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	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	V-ing 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	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	V-ing form
should I down? should you down? should he down? should we down? should you down? should they down?	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	V-ing 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?	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	V-ing 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?	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	V-ing 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?	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?