must protract
Verbe régulier : protract - protracted- protracted
Traduction française : prolonger - faire durer 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must protract
you must protract
he must protract
we must protract
you must protract
they must protract 	I must be protracting
you must be protracting
he must be protracting
we must be protracting
you must be protracting
they must be protracting	I must have protracted
you must have protracted
he must have protracted
we must have protracted
you must have protracted
they must have protracted	I must have been protracting
you must have been protracting
he must have been protracting
we must have been protracting
you must have been protracting
they must have been protracting	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must not protract
you must not protract
he must not protract
we must not protract
you must not protract
they must not protract 	I must not be protracting
you must not be protracting
he must not be protracting
we must not be protracting
you must not be protracting
they must not be protracting	I must not have protracted
you must not have protracted
he must not have protracted
we must not have protracted
you must not have protracted
they must not have protracted	I must not have been protracting
you must not have been protracting
he must not have been protracting
we must not have been protracting
you must not have been protracting
they must not have been protracting	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I protract?
must you protract?
must he protract?
must we protract?
must you protract?
must they protract? 	must I be protracting?
must you be protracting?
must he be protracting?
must we be protracting?
must you be protracting?
must they be protracting? 	must I have protracted?
must you have protracted?
must he have protracted?
must we have protracted?
must you have protracted?
must they have protracted? 	must I have been protracting?
must you have been protracting?
must he have been protracting?
must we have been protracting?
must you have been protracting?
must they have been protracting? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I not protract?
must you not protract?
must he not protract?
must we not protract?
must you not protract?
must they not protract? 	must I not be protracting?
must you not be protracting?
must he not be protracting?
must we not be protracting?
must you not be protracting?
must they not be protracting? 	must I not have protracted?
must you not have protracted?
must he not have protracted?
must we not have protracted?
must you not have protracted?
must they not have protracted? 	must I not have been protracting?
must you not have been protracting?
must he not have been protracting?
must we not have been protracting?
must you not have been protracting?
must they not have been protracting?