English verb conjugation
SHOULD RETIGHTEN

Regular verb: retighten - retightened - retightened

Affirmation

Simple form	V-ing form
I'd retighten you'd retighten he'd retighten we'd retighten you'd retighten they'd retighten	I'd be retightening you'd be retightening he'd be retightening we'd be retightening you'd be retightening they'd be retightening
Perfect	V-ing perfect
I should've retightened you should've retightened he should've retightened we should've retightened you should've retightened they should've retightened	I should've been retightening you should've been retightening he should've been retightening we should've been retightening you should've been retightening they should've been retightening

Negation

Simple form	V-ing form
I shouldn't retighten you shouldn't retighten he shouldn't retighten we shouldn't retighten you shouldn't retighten they shouldn't retighten	I shouldn't be retightening you shouldn't be retightening he shouldn't be retightening we shouldn't be retightening you shouldn't be retightening they shouldn't be retightening
Perfect	V-ing perfect
I shouldn't have retightened you shouldn't have retightened he shouldn't have retightened we shouldn't have retightened you shouldn't have retightened they shouldn't have retightened	I shouldn't have been retightening you shouldn't have been retightening he shouldn't have been retightening we shouldn't have been retightening you shouldn't have been retightening they shouldn't have been retightening

Interrogative form

Simple form	V-ing form
should I retighten? should you retighten? should he retighten? should we retighten? should you retighten? should they retighten?	should I be retightening? should you be retightening? should he be retightening? should we be retightening? should you be retightening? should they be retightening?
Perfect	V-ing perfect
should I have retightened? should you have retightened? should he have retightened? should we have retightened? should you have retightened? should they have retightened?	should I have been retightening? should you have been retightening? should he have been retightening? should we have been retightening? should you have been retightening? should they have been retightening?

Interro-negative form

Simple form	V-ing form
shouldn't I retighten? shouldn't you retighten? shouldn't he retighten? shouldn't we retighten? shouldn't you retighten? shouldn't they retighten?	shouldn't I be retightening? shouldn't you be retightening? shouldn't he be retightening? shouldn't we be retightening? shouldn't you be retightening? shouldn't they be retightening?
Perfect	V-ing perfect
shouldn't I have retightened? shouldn't you have retightened? shouldn't he have retightened? shouldn't we have retightened? shouldn't you have retightened? shouldn't they have retightened?	shouldn't I have been retightening? shouldn't you have been retightening? shouldn't he have been retightening? shouldn't we have been retightening? shouldn't you have been retightening? shouldn't they have been retightening?