must sound
Verbe régulier : sound - sounded- sounded
Traduction française : sonner - sonner 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must sound
you must sound
she must sound
we must sound
you must sound
they must sound 	I must be sounding
you must be sounding
she must be sounding
we must be sounding
you must be sounding
they must be sounding	I must have sounded
you must have sounded
she must have sounded
we must have sounded
you must have sounded
they must have sounded	I must have been sounding
you must have been sounding
she must have been sounding
we must have been sounding
you must have been sounding
they must have been sounding	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must not sound
you must not sound
she must not sound
we must not sound
you must not sound
they must not sound 	I must not be sounding
you must not be sounding
she must not be sounding
we must not be sounding
you must not be sounding
they must not be sounding	I must not have sounded
you must not have sounded
she must not have sounded
we must not have sounded
you must not have sounded
they must not have sounded	I must not have been sounding
you must not have been sounding
she must not have been sounding
we must not have been sounding
you must not have been sounding
they must not have been sounding	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I sound?
must you sound?
must she sound?
must we sound?
must you sound?
must they sound? 	must I be sounding?
must you be sounding?
must she be sounding?
must we be sounding?
must you be sounding?
must they be sounding? 	must I have sounded?
must you have sounded?
must she have sounded?
must we have sounded?
must you have sounded?
must they have sounded? 	must I have been sounding?
must you have been sounding?
must she have been sounding?
must we have been sounding?
must you have been sounding?
must they have been sounding? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I not sound?
must you not sound?
must she not sound?
must we not sound?
must you not sound?
must they not sound? 	must I not be sounding?
must you not be sounding?
must she not be sounding?
must we not be sounding?
must you not be sounding?
must they not be sounding? 	must I not have sounded?
must you not have sounded?
must she not have sounded?
must we not have sounded?
must you not have sounded?
must they not have sounded? 	must I not have been sounding?
must you not have been sounding?
must she not have been sounding?
must we not have been sounding?
must you not have been sounding?
must they not have been sounding?