should constrain
Verbe régulier : constrain - constrained- constrained
Traduction française : contraindre - forcer 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I should constrain
you should constrain
he should constrain
we should constrain
you should constrain
they should constrain 	I should be constraining
you should be constraining
he should be constraining
we should be constraining
you should be constraining
they should be constraining	I should have constrained
you should have constrained
he should have constrained
we should have constrained
you should have constrained
they should have constrained	I should have been constraining
you should have been constraining
he should have been constraining
we should have been constraining
you should have been constraining
they should have been constraining	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I should not constrain
you should not constrain
he should not constrain
we should not constrain
you should not constrain
they should not constrain 	I should not be constraining
you should not be constraining
he should not be constraining
we should not be constraining
you should not be constraining
they should not be constraining	I should not have constrained
you should not have constrained
he should not have constrained
we should not have constrained
you should not have constrained
they should not have constrained	I should not have been constraining
you should not have been constraining
he should not have been constraining
we should not have been constraining
you should not have been constraining
they should not have been constraining	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en 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? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
should I not constrain?
should you not constrain?
should he not constrain?
should we not constrain?
should you not constrain?
should they not constrain? 	should I not be constraining?
should you not be constraining?
should he not be constraining?
should we not be constraining?
should you not be constraining?
should they not be constraining? 	should I not have constrained?
should you not have constrained?
should he not have constrained?
should we not have constrained?
should you not have constrained?
should they not have constrained? 	should I not have been constraining?
should you not have been constraining?
should he not have been constraining?
should we not have been constraining?
should you not have been constraining?
should they not have been constraining?