must mute
Verbo regular: mute - muted- muted

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must mute
you must mute
he must mute
we must mute
you must mute
they must mute 	I must be muting
you must be muting
he must be muting
we must be muting
you must be muting
they must be muting	I must have muted
you must have muted
he must have muted
we must have muted
you must have muted
they must have muted	I must have been muting
you must have been muting
he must have been muting
we must have been muting
you must have been muting
they must have been muting	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must not mute
you must not mute
he must not mute
we must not mute
you must not mute
they must not mute 	I must not be muting
you must not be muting
he must not be muting
we must not be muting
you must not be muting
they must not be muting	I must not have muted
you must not have muted
he must not have muted
we must not have muted
you must not have muted
they must not have muted	I must not have been muting
you must not have been muting
he must not have been muting
we must not have been muting
you must not have been muting
they must not have been muting	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I mute?
must you mute?
must he mute?
must we mute?
must you mute?
must they mute? 	must I be muting?
must you be muting?
must he be muting?
must we be muting?
must you be muting?
must they be muting? 	must I have muted?
must you have muted?
must he have muted?
must we have muted?
must you have muted?
must they have muted? 	must I have been muting?
must you have been muting?
must he have been muting?
must we have been muting?
must you have been muting?
must they have been muting? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I not mute?
must you not mute?
must he not mute?
must we not mute?
must you not mute?
must they not mute? 	must I not be muting?
must you not be muting?
must he not be muting?
must we not be muting?
must you not be muting?
must they not be muting? 	must I not have muted?
must you not have muted?
must he not have muted?
must we not have muted?
must you not have muted?
must they not have muted? 	must I not have been muting?
must you not have been muting?
must he not have been muting?
must we not have been muting?
must you not have been muting?
must they not have been muting?