could fight
Verbo irregular: fight - fought- fought

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could fight
you could fight
he could fight
we could fight
you could fight
they could fight 	I could be fighting
you could be fighting
he could be fighting
we could be fighting
you could be fighting
they could be fighting	I could have fought
you could have fought
he could have fought
we could have fought
you could have fought
they could have fought	I could have been fighting
you could have been fighting
he could have been fighting
we could have been fighting
you could have been fighting
they could have been fighting	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I couldn't fight
you couldn't fight
he couldn't fight
we couldn't fight
you couldn't fight
they couldn't fight 	I couldn't be fighting
you couldn't be fighting
he couldn't be fighting
we couldn't be fighting
you couldn't be fighting
they couldn't be fighting	I couldn't have fought
you couldn't have fought
he couldn't have fought
we couldn't have fought
you couldn't have fought
they couldn't have fought	I couldn't have been fighting
you couldn't have been fighting
he couldn't have been fighting
we couldn't have been fighting
you couldn't have been fighting
they couldn't have been fighting	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I fight?
could you fight?
could he fight?
could we fight?
could you fight?
could they fight? 	could I be fighting?
could you be fighting?
could he be fighting?
could we be fighting?
could you be fighting?
could they be fighting? 	could I have fought?
could you have fought?
could he have fought?
could we have fought?
could you have fought?
could they have fought? 	could I have been fighting?
could you have been fighting?
could he have been fighting?
could we have been fighting?
could you have been fighting?
could they have been fighting? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
couldn't I fight?
couldn't you fight?
couldn't he fight?
couldn't we fight?
couldn't you fight?
couldn't they fight? 	couldn't I be fighting?
couldn't you be fighting?
couldn't he be fighting?
couldn't we be fighting?
couldn't you be fighting?
couldn't they be fighting? 	couldn't I have fought?
couldn't you have fought?
couldn't he have fought?
couldn't we have fought?
couldn't you have fought?
couldn't they have fought? 	couldn't I have been fighting?
couldn't you have been fighting?
couldn't he have been fighting?
couldn't we have been fighting?
couldn't you have been fighting?
couldn't they have been fighting?