could muzzle
Verbo regular: muzzle - muzzled- muzzled

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could muzzle
you could muzzle
she could muzzle
we could muzzle
you could muzzle
they could muzzle 	I could be muzzling
you could be muzzling
she could be muzzling
we could be muzzling
you could be muzzling
they could be muzzling	I could have muzzled
you could have muzzled
she could have muzzled
we could have muzzled
you could have muzzled
they could have muzzled	I could have been muzzling
you could have been muzzling
she could have been muzzling
we could have been muzzling
you could have been muzzling
they could have been muzzling	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I couldn't muzzle
you couldn't muzzle
she couldn't muzzle
we couldn't muzzle
you couldn't muzzle
they couldn't muzzle 	I couldn't be muzzling
you couldn't be muzzling
she couldn't be muzzling
we couldn't be muzzling
you couldn't be muzzling
they couldn't be muzzling	I couldn't have muzzled
you couldn't have muzzled
she couldn't have muzzled
we couldn't have muzzled
you couldn't have muzzled
they couldn't have muzzled	I couldn't have been muzzling
you couldn't have been muzzling
she couldn't have been muzzling
we couldn't have been muzzling
you couldn't have been muzzling
they couldn't have been muzzling	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I muzzle?
could you muzzle?
could she muzzle?
could we muzzle?
could you muzzle?
could they muzzle? 	could I be muzzling?
could you be muzzling?
could she be muzzling?
could we be muzzling?
could you be muzzling?
could they be muzzling? 	could I have muzzled?
could you have muzzled?
could she have muzzled?
could we have muzzled?
could you have muzzled?
could they have muzzled? 	could I have been muzzling?
could you have been muzzling?
could she have been muzzling?
could we have been muzzling?
could you have been muzzling?
could they have been muzzling? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
couldn't I muzzle?
couldn't you muzzle?
couldn't she muzzle?
couldn't we muzzle?
couldn't you muzzle?
couldn't they muzzle? 	couldn't I be muzzling?
couldn't you be muzzling?
couldn't she be muzzling?
couldn't we be muzzling?
couldn't you be muzzling?
couldn't they be muzzling? 	couldn't I have muzzled?
couldn't you have muzzled?
couldn't she have muzzled?
couldn't we have muzzled?
couldn't you have muzzled?
couldn't they have muzzled? 	couldn't I have been muzzling?
couldn't you have been muzzling?
couldn't she have been muzzling?
couldn't we have been muzzling?
couldn't you have been muzzling?
couldn't they have been muzzling?