English verb conjugation
SHOULD CONSTRAIN

Regular verb: constrain - constrained - constrained

Affirmation

Simple form	V-ing form
I'd constrain you'd constrain he'd constrain we'd constrain you'd constrain they'd constrain	I'd be constraining you'd be constraining he'd be constraining we'd be constraining you'd be constraining they'd be constraining
Perfect	V-ing perfect
I should've constrained you should've constrained he should've constrained we should've constrained you should've constrained they should've constrained	I should've been constraining you should've been constraining he should've been constraining we should've been constraining you should've been constraining they should've been constraining

Negation

Simple form	V-ing form
I shouldn't constrain you shouldn't constrain he shouldn't constrain we shouldn't constrain you shouldn't constrain they shouldn't constrain	I shouldn't be constraining you shouldn't be constraining he shouldn't be constraining we shouldn't be constraining you shouldn't be constraining they shouldn't be constraining
Perfect	V-ing perfect
I shouldn't have constrained you shouldn't have constrained he shouldn't have constrained we shouldn't have constrained you shouldn't have constrained they shouldn't have constrained	I shouldn't have been constraining you shouldn't have been constraining he shouldn't have been constraining we shouldn't have been constraining you shouldn't have been constraining they shouldn't have been constraining

Interrogative form

Simple form	V-ing form
should I constrain? should you constrain? should he constrain? should we constrain? should you constrain? should they constrain?	should I be constraining? should you be constraining? should he be constraining? should we be constraining? should you be constraining? should they be constraining?
Perfect	V-ing perfect
should I have constrained? should you have constrained? should he have constrained? should we have constrained? should you have constrained? should they have constrained?	should I have been constraining? should you have been constraining? should he have been constraining? should we have been constraining? should you have been constraining? should they have been constraining?

Interro-negative form

Simple form	V-ing form
shouldn't I constrain? shouldn't you constrain? shouldn't he constrain? shouldn't we constrain? shouldn't you constrain? shouldn't they constrain?	shouldn't I be constraining? shouldn't you be constraining? shouldn't he be constraining? shouldn't we be constraining? shouldn't you be constraining? shouldn't they be constraining?
Perfect	V-ing perfect
shouldn't I have constrained? shouldn't you have constrained? shouldn't he have constrained? shouldn't we have constrained? shouldn't you have constrained? shouldn't they have constrained?	shouldn't I have been constraining? shouldn't you have been constraining? shouldn't he have been constraining? shouldn't we have been constraining? shouldn't you have been constraining? shouldn't they have been constraining?