should constrain
Verbo regular: constrain - constrained- constrained

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
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	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	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
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	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	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
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? 	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? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
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? 	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?