must sever
Verbe régulier : sever - severed- severed
Traduction française : couper - se rompre 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must sever
you must sever
he must sever
we must sever
you must sever
they must sever 	I must be severing
you must be severing
he must be severing
we must be severing
you must be severing
they must be severing	I must have severed
you must have severed
he must have severed
we must have severed
you must have severed
they must have severed	I must have been severing
you must have been severing
he must have been severing
we must have been severing
you must have been severing
they must have been severing	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must not sever
you must not sever
he must not sever
we must not sever
you must not sever
they must not sever 	I must not be severing
you must not be severing
he must not be severing
we must not be severing
you must not be severing
they must not be severing	I must not have severed
you must not have severed
he must not have severed
we must not have severed
you must not have severed
they must not have severed	I must not have been severing
you must not have been severing
he must not have been severing
we must not have been severing
you must not have been severing
they must not have been severing	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I sever?
must you sever?
must he sever?
must we sever?
must you sever?
must they sever? 	must I be severing?
must you be severing?
must he be severing?
must we be severing?
must you be severing?
must they be severing? 	must I have severed?
must you have severed?
must he have severed?
must we have severed?
must you have severed?
must they have severed? 	must I have been severing?
must you have been severing?
must he have been severing?
must we have been severing?
must you have been severing?
must they have been severing? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I not sever?
must you not sever?
must he not sever?
must we not sever?
must you not sever?
must they not sever? 	must I not be severing?
must you not be severing?
must he not be severing?
must we not be severing?
must you not be severing?
must they not be severing? 	must I not have severed?
must you not have severed?
must he not have severed?
must we not have severed?
must you not have severed?
must they not have severed? 	must I not have been severing?
must you not have been severing?
must he not have been severing?
must we not have been severing?
must you not have been severing?
must they not have been severing?