English verb conjugation
SHOULD DOWNSHIFT

Regular verb: downshift - downshifted - downshifted

Affirmation

Simple form	V-ing form
I'd downshift you'd downshift he'd downshift we'd downshift you'd downshift they'd downshift	I'd be downshifting you'd be downshifting he'd be downshifting we'd be downshifting you'd be downshifting they'd be downshifting
Perfect	V-ing perfect
I should've downshifted you should've downshifted he should've downshifted we should've downshifted you should've downshifted they should've downshifted	I should've been downshifting you should've been downshifting he should've been downshifting we should've been downshifting you should've been downshifting they should've been downshifting

Negation

Simple form	V-ing form
I shouldn't downshift you shouldn't downshift he shouldn't downshift we shouldn't downshift you shouldn't downshift they shouldn't downshift	I shouldn't be downshifting you shouldn't be downshifting he shouldn't be downshifting we shouldn't be downshifting you shouldn't be downshifting they shouldn't be downshifting
Perfect	V-ing perfect
I shouldn't have downshifted you shouldn't have downshifted he shouldn't have downshifted we shouldn't have downshifted you shouldn't have downshifted they shouldn't have downshifted	I shouldn't have been downshifting you shouldn't have been downshifting he shouldn't have been downshifting we shouldn't have been downshifting you shouldn't have been downshifting they shouldn't have been downshifting

Interrogative form

Simple form	V-ing form
should I downshift? should you downshift? should he downshift? should we downshift? should you downshift? should they downshift?	should I be downshifting? should you be downshifting? should he be downshifting? should we be downshifting? should you be downshifting? should they be downshifting?
Perfect	V-ing perfect
should I have downshifted? should you have downshifted? should he have downshifted? should we have downshifted? should you have downshifted? should they have downshifted?	should I have been downshifting? should you have been downshifting? should he have been downshifting? should we have been downshifting? should you have been downshifting? should they have been downshifting?

Interro-negative form

Simple form	V-ing form
shouldn't I downshift? shouldn't you downshift? shouldn't he downshift? shouldn't we downshift? shouldn't you downshift? shouldn't they downshift?	shouldn't I be downshifting? shouldn't you be downshifting? shouldn't he be downshifting? shouldn't we be downshifting? shouldn't you be downshifting? shouldn't they be downshifting?
Perfect	V-ing perfect
shouldn't I have downshifted? shouldn't you have downshifted? shouldn't he have downshifted? shouldn't we have downshifted? shouldn't you have downshifted? shouldn't they have downshifted?	shouldn't I have been downshifting? shouldn't you have been downshifting? shouldn't he have been downshifting? shouldn't we have been downshifting? shouldn't you have been downshifting? shouldn't they have been downshifting?