could photograph
Verbo regular: photograph - photographed- photographed

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could photograph
you could photograph
she could photograph
we could photograph
you could photograph
they could photograph 	I could be photographing
you could be photographing
she could be photographing
we could be photographing
you could be photographing
they could be photographing	I could have photographed
you could have photographed
she could have photographed
we could have photographed
you could have photographed
they could have photographed	I could have been photographing
you could have been photographing
she could have been photographing
we could have been photographing
you could have been photographing
they could have been photographing	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could not photograph
you could not photograph
she could not photograph
we could not photograph
you could not photograph
they could not photograph 	I could not be photographing
you could not be photographing
she could not be photographing
we could not be photographing
you could not be photographing
they could not be photographing	I could not have photographed
you could not have photographed
she could not have photographed
we could not have photographed
you could not have photographed
they could not have photographed	I could not have been photographing
you could not have been photographing
she could not have been photographing
we could not have been photographing
you could not have been photographing
they could not have been photographing	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I photograph?
could you photograph?
could she photograph?
could we photograph?
could you photograph?
could they photograph? 	could I be photographing?
could you be photographing?
could she be photographing?
could we be photographing?
could you be photographing?
could they be photographing? 	could I have photographed?
could you have photographed?
could she have photographed?
could we have photographed?
could you have photographed?
could they have photographed? 	could I have been photographing?
could you have been photographing?
could she have been photographing?
could we have been photographing?
could you have been photographing?
could they have been photographing? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I not photograph?
could you not photograph?
could she not photograph?
could we not photograph?
could you not photograph?
could they not photograph? 	could I not be photographing?
could you not be photographing?
could she not be photographing?
could we not be photographing?
could you not be photographing?
could they not be photographing? 	could I not have photographed?
could you not have photographed?
could she not have photographed?
could we not have photographed?
could you not have photographed?
could they not have photographed? 	could I not have been photographing?
could you not have been photographing?
could she not have been photographing?
could we not have been photographing?
could you not have been photographing?
could they not have been photographing?