must muzzle
Verbo regular: muzzle - muzzled- muzzled

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must muzzle
you must muzzle
he must muzzle
we must muzzle
you must muzzle
they must muzzle 	I must be muzzling
you must be muzzling
he must be muzzling
we must be muzzling
you must be muzzling
they must be muzzling	I must have muzzled
you must have muzzled
he must have muzzled
we must have muzzled
you must have muzzled
they must have muzzled	I must have been muzzling
you must have been muzzling
he must have been muzzling
we must have been muzzling
you must have been muzzling
they must have been muzzling	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I mustn't muzzle
you mustn't muzzle
he mustn't muzzle
we mustn't muzzle
you mustn't muzzle
they mustn't muzzle 	I mustn't be muzzling
you mustn't be muzzling
he mustn't be muzzling
we mustn't be muzzling
you mustn't be muzzling
they mustn't be muzzling	I mustn't have muzzled
you mustn't have muzzled
he mustn't have muzzled
we mustn't have muzzled
you mustn't have muzzled
they mustn't have muzzled	I mustn't have been muzzling
you mustn't have been muzzling
he mustn't have been muzzling
we mustn't have been muzzling
you mustn't have been muzzling
they mustn't have been muzzling	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I muzzle?
must you muzzle?
must he muzzle?
must we muzzle?
must you muzzle?
must they muzzle? 	must I be muzzling?
must you be muzzling?
must he be muzzling?
must we be muzzling?
must you be muzzling?
must they be muzzling? 	must I have muzzled?
must you have muzzled?
must he have muzzled?
must we have muzzled?
must you have muzzled?
must they have muzzled? 	must I have been muzzling?
must you have been muzzling?
must he have been muzzling?
must we have been muzzling?
must you have been muzzling?
must they have been muzzling? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
mustn't I muzzle?
mustn't you muzzle?
mustn't he muzzle?
mustn't we muzzle?
mustn't you muzzle?
mustn't they muzzle? 	mustn't I be muzzling?
mustn't you be muzzling?
mustn't he be muzzling?
mustn't we be muzzling?
mustn't you be muzzling?
mustn't they be muzzling? 	mustn't I have muzzled?
mustn't you have muzzled?
mustn't he have muzzled?
mustn't we have muzzled?
mustn't you have muzzled?
mustn't they have muzzled? 	mustn't I have been muzzling?
mustn't you have been muzzling?
mustn't he have been muzzling?
mustn't we have been muzzling?
mustn't you have been muzzling?
mustn't they have been muzzling?