could mingle
Verbo regular: mingle - mingled- mingled

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could mingle
you could mingle
he could mingle
we could mingle
you could mingle
they could mingle 	I could be mingling
you could be mingling
he could be mingling
we could be mingling
you could be mingling
they could be mingling	I could have mingled
you could have mingled
he could have mingled
we could have mingled
you could have mingled
they could have mingled	I could have been mingling
you could have been mingling
he could have been mingling
we could have been mingling
you could have been mingling
they could have been mingling	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I couldn't mingle
you couldn't mingle
he couldn't mingle
we couldn't mingle
you couldn't mingle
they couldn't mingle 	I couldn't be mingling
you couldn't be mingling
he couldn't be mingling
we couldn't be mingling
you couldn't be mingling
they couldn't be mingling	I couldn't have mingled
you couldn't have mingled
he couldn't have mingled
we couldn't have mingled
you couldn't have mingled
they couldn't have mingled	I couldn't have been mingling
you couldn't have been mingling
he couldn't have been mingling
we couldn't have been mingling
you couldn't have been mingling
they couldn't have been mingling	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I mingle?
could you mingle?
could he mingle?
could we mingle?
could you mingle?
could they mingle? 	could I be mingling?
could you be mingling?
could he be mingling?
could we be mingling?
could you be mingling?
could they be mingling? 	could I have mingled?
could you have mingled?
could he have mingled?
could we have mingled?
could you have mingled?
could they have mingled? 	could I have been mingling?
could you have been mingling?
could he have been mingling?
could we have been mingling?
could you have been mingling?
could they have been mingling? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
couldn't I mingle?
couldn't you mingle?
couldn't he mingle?
couldn't we mingle?
couldn't you mingle?
couldn't they mingle? 	couldn't I be mingling?
couldn't you be mingling?
couldn't he be mingling?
couldn't we be mingling?
couldn't you be mingling?
couldn't they be mingling? 	couldn't I have mingled?
couldn't you have mingled?
couldn't he have mingled?
couldn't we have mingled?
couldn't you have mingled?
couldn't they have mingled? 	couldn't I have been mingling?
couldn't you have been mingling?
couldn't he have been mingling?
couldn't we have been mingling?
couldn't you have been mingling?
couldn't they have been mingling?