could watch
Verbo regular: watch - watched- watched

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could watch
you could watch
she could watch
we could watch
you could watch
they could watch 	I could be watching
you could be watching
she could be watching
we could be watching
you could be watching
they could be watching	I could have watched
you could have watched
she could have watched
we could have watched
you could have watched
they could have watched	I could have been watching
you could have been watching
she could have been watching
we could have been watching
you could have been watching
they could have been watching	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could not watch
you could not watch
she could not watch
we could not watch
you could not watch
they could not watch 	I could not be watching
you could not be watching
she could not be watching
we could not be watching
you could not be watching
they could not be watching	I could not have watched
you could not have watched
she could not have watched
we could not have watched
you could not have watched
they could not have watched	I could not have been watching
you could not have been watching
she could not have been watching
we could not have been watching
you could not have been watching
they could not have been watching	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I watch?
could you watch?
could she watch?
could we watch?
could you watch?
could they watch? 	could I be watching?
could you be watching?
could she be watching?
could we be watching?
could you be watching?
could they be watching? 	could I have watched?
could you have watched?
could she have watched?
could we have watched?
could you have watched?
could they have watched? 	could I have been watching?
could you have been watching?
could she have been watching?
could we have been watching?
could you have been watching?
could they have been watching? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I not watch?
could you not watch?
could she not watch?
could we not watch?
could you not watch?
could they not watch? 	could I not be watching?
could you not be watching?
could she not be watching?
could we not be watching?
could you not be watching?
could they not be watching? 	could I not have watched?
could you not have watched?
could she not have watched?
could we not have watched?
could you not have watched?
could they not have watched? 	could I not have been watching?
could you not have been watching?
could she not have been watching?
could we not have been watching?
could you not have been watching?
could they not have been watching?