must enforce
Verbe régulier : enforce - enforced- enforced
Traduction française : mettre en &oelig;uvre - mettre en vigueur 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must enforce
you must enforce
she must enforce
we must enforce
you must enforce
they must enforce 	I must be enforcing
you must be enforcing
she must be enforcing
we must be enforcing
you must be enforcing
they must be enforcing	I must have enforced
you must have enforced
she must have enforced
we must have enforced
you must have enforced
they must have enforced	I must have been enforcing
you must have been enforcing
she must have been enforcing
we must have been enforcing
you must have been enforcing
they must have been enforcing	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must not enforce
you must not enforce
she must not enforce
we must not enforce
you must not enforce
they must not enforce 	I must not be enforcing
you must not be enforcing
she must not be enforcing
we must not be enforcing
you must not be enforcing
they must not be enforcing	I must not have enforced
you must not have enforced
she must not have enforced
we must not have enforced
you must not have enforced
they must not have enforced	I must not have been enforcing
you must not have been enforcing
she must not have been enforcing
we must not have been enforcing
you must not have been enforcing
they must not have been enforcing	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I enforce?
must you enforce?
must she enforce?
must we enforce?
must you enforce?
must they enforce? 	must I be enforcing?
must you be enforcing?
must she be enforcing?
must we be enforcing?
must you be enforcing?
must they be enforcing? 	must I have enforced?
must you have enforced?
must she have enforced?
must we have enforced?
must you have enforced?
must they have enforced? 	must I have been enforcing?
must you have been enforcing?
must she have been enforcing?
must we have been enforcing?
must you have been enforcing?
must they have been enforcing? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I not enforce?
must you not enforce?
must she not enforce?
must we not enforce?
must you not enforce?
must they not enforce? 	must I not be enforcing?
must you not be enforcing?
must she not be enforcing?
must we not be enforcing?
must you not be enforcing?
must they not be enforcing? 	must I not have enforced?
must you not have enforced?
must she not have enforced?
must we not have enforced?
must you not have enforced?
must they not have enforced? 	must I not have been enforcing?
must you not have been enforcing?
must she not have been enforcing?
must we not have been enforcing?
must you not have been enforcing?
must they not have been enforcing?