English verb conjugation
SHOULD UNSHIFT

Regular verb: unshift - unshifted - unshifted

Affirmation

Simple form	V-ing form
I'd unshift you'd unshift she'd unshift we'd unshift you'd unshift they'd unshift	I'd be unshifting you'd be unshifting she'd be unshifting we'd be unshifting you'd be unshifting they'd be unshifting
Perfect	V-ing perfect
I should've unshifted you should've unshifted she should've unshifted we should've unshifted you should've unshifted they should've unshifted	I should've been unshifting you should've been unshifting she should've been unshifting we should've been unshifting you should've been unshifting they should've been unshifting

Negation

Simple form	V-ing form
I shouldn't unshift you shouldn't unshift she shouldn't unshift we shouldn't unshift you shouldn't unshift they shouldn't unshift	I shouldn't be unshifting you shouldn't be unshifting she shouldn't be unshifting we shouldn't be unshifting you shouldn't be unshifting they shouldn't be unshifting
Perfect	V-ing perfect
I shouldn't have unshifted you shouldn't have unshifted she shouldn't have unshifted we shouldn't have unshifted you shouldn't have unshifted they shouldn't have unshifted	I shouldn't have been unshifting you shouldn't have been unshifting she shouldn't have been unshifting we shouldn't have been unshifting you shouldn't have been unshifting they shouldn't have been unshifting

Interrogative form

Simple form	V-ing form
should I unshift? should you unshift? should she unshift? should we unshift? should you unshift? should they unshift?	should I be unshifting? should you be unshifting? should she be unshifting? should we be unshifting? should you be unshifting? should they be unshifting?
Perfect	V-ing perfect
should I have unshifted? should you have unshifted? should she have unshifted? should we have unshifted? should you have unshifted? should they have unshifted?	should I have been unshifting? should you have been unshifting? should she have been unshifting? should we have been unshifting? should you have been unshifting? should they have been unshifting?

Interro-negative form

Simple form	V-ing form
shouldn't I unshift? shouldn't you unshift? shouldn't she unshift? shouldn't we unshift? shouldn't you unshift? shouldn't they unshift?	shouldn't I be unshifting? shouldn't you be unshifting? shouldn't she be unshifting? shouldn't we be unshifting? shouldn't you be unshifting? shouldn't they be unshifting?
Perfect	V-ing perfect
shouldn't I have unshifted? shouldn't you have unshifted? shouldn't she have unshifted? shouldn't we have unshifted? shouldn't you have unshifted? shouldn't they have unshifted?	shouldn't I have been unshifting? shouldn't you have been unshifting? shouldn't she have been unshifting? shouldn't we have been unshifting? shouldn't you have been unshifting? shouldn't they have been unshifting?