English verb conjugation
SHOULD UPSHIFT

Regular verb: upshift - upshifted - upshifted

Affirmation

Simple form	V-ing form
I should upshift you should upshift he should upshift we should upshift you should upshift they should upshift	I should be upshifting you should be upshifting he should be upshifting we should be upshifting you should be upshifting they should be upshifting
Perfect	V-ing perfect
I should have upshifted you should have upshifted he should have upshifted we should have upshifted you should have upshifted they should have upshifted	I should have been upshifting you should have been upshifting he should have been upshifting we should have been upshifting you should have been upshifting they should have been upshifting

Negation

Simple form	V-ing form
I should not upshift you should not upshift he should not upshift we should not upshift you should not upshift they should not upshift	I should not be upshifting you should not be upshifting he should not be upshifting we should not be upshifting you should not be upshifting they should not be upshifting
Perfect	V-ing perfect
I should not have upshifted you should not have upshifted he should not have upshifted we should not have upshifted you should not have upshifted they should not have upshifted	I should not have been upshifting you should not have been upshifting he should not have been upshifting we should not have been upshifting you should not have been upshifting they should not have been upshifting

Interrogative form

Simple form	V-ing form
should I upshift? should you upshift? should he upshift? should we upshift? should you upshift? should they upshift?	should I be upshifting? should you be upshifting? should he be upshifting? should we be upshifting? should you be upshifting? should they be upshifting?
Perfect	V-ing perfect
should I have upshifted? should you have upshifted? should he have upshifted? should we have upshifted? should you have upshifted? should they have upshifted?	should I have been upshifting? should you have been upshifting? should he have been upshifting? should we have been upshifting? should you have been upshifting? should they have been upshifting?

Interro-negative form

Simple form	V-ing form
should I not upshift? should you not upshift? should he not upshift? should we not upshift? should you not upshift? should they not upshift?	should I not be upshifting? should you not be upshifting? should he not be upshifting? should we not be upshifting? should you not be upshifting? should they not be upshifting?
Perfect	V-ing perfect
should I not have upshifted? should you not have upshifted? should he not have upshifted? should we not have upshifted? should you not have upshifted? should they not have upshifted?	should I not have been upshifting? should you not have been upshifting? should he not have been upshifting? should we not have been upshifting? should you not have been upshifting? should they not have been upshifting?