could mess
Verbo regular: mess - messed- messed

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could mess
you could mess
he could mess
we could mess
you could mess
they could mess 	I could be messing
you could be messing
he could be messing
we could be messing
you could be messing
they could be messing	I could have messed
you could have messed
he could have messed
we could have messed
you could have messed
they could have messed	I could have been messing
you could have been messing
he could have been messing
we could have been messing
you could have been messing
they could have been messing	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could not mess
you could not mess
he could not mess
we could not mess
you could not mess
they could not mess 	I could not be messing
you could not be messing
he could not be messing
we could not be messing
you could not be messing
they could not be messing	I could not have messed
you could not have messed
he could not have messed
we could not have messed
you could not have messed
they could not have messed	I could not have been messing
you could not have been messing
he could not have been messing
we could not have been messing
you could not have been messing
they could not have been messing	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I mess?
could you mess?
could he mess?
could we mess?
could you mess?
could they mess? 	could I be messing?
could you be messing?
could he be messing?
could we be messing?
could you be messing?
could they be messing? 	could I have messed?
could you have messed?
could he have messed?
could we have messed?
could you have messed?
could they have messed? 	could I have been messing?
could you have been messing?
could he have been messing?
could we have been messing?
could you have been messing?
could they have been messing? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I not mess?
could you not mess?
could he not mess?
could we not mess?
could you not mess?
could they not mess? 	could I not be messing?
could you not be messing?
could he not be messing?
could we not be messing?
could you not be messing?
could they not be messing? 	could I not have messed?
could you not have messed?
could he not have messed?
could we not have messed?
could you not have messed?
could they not have messed? 	could I not have been messing?
could you not have been messing?
could he not have been messing?
could we not have been messing?
could you not have been messing?
could they not have been messing?