must sound
Verbo regolare: sound - sounded- sounded

Affermazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I must sound
you must sound
he must sound
we must sound
you must sound
they must sound 	I must be sounding
you must be sounding
he must be sounding
we must be sounding
you must be sounding
they must be sounding	I must have sounded
you must have sounded
he 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
he must have been sounding
we must have been sounding
you must have been sounding
they must have been sounding	

Negazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I must not sound
you must not sound
he 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
he 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
he 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
he must not have been sounding
we must not have been sounding
you must not have been sounding
they must not have been sounding	

Forma interrogativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
must I sound?
must you sound?
must he sound?
must we sound?
must you sound?
must they sound? 	must I be sounding?
must you be sounding?
must he be sounding?
must we be sounding?
must you be sounding?
must they be sounding? 	must I have sounded?
must you have sounded?
must he 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 he have been sounding?
must we have been sounding?
must you have been sounding?
must they have been sounding? 	

Forma interro-negativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
must I not sound?
must you not sound?
must he 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 he 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 he 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 he not have been sounding?
must we not have been sounding?
must you not have been sounding?
must they not have been sounding?