could stook
Verbo regular: stook - stooked- stooked

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could stook
you could stook
she could stook
we could stook
you could stook
they could stook 	I could be stooking
you could be stooking
she could be stooking
we could be stooking
you could be stooking
they could be stooking	I could have stooked
you could have stooked
she could have stooked
we could have stooked
you could have stooked
they could have stooked	I could have been stooking
you could have been stooking
she could have been stooking
we could have been stooking
you could have been stooking
they could have been stooking	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could not stook
you could not stook
she could not stook
we could not stook
you could not stook
they could not stook 	I could not be stooking
you could not be stooking
she could not be stooking
we could not be stooking
you could not be stooking
they could not be stooking	I could not have stooked
you could not have stooked
she could not have stooked
we could not have stooked
you could not have stooked
they could not have stooked	I could not have been stooking
you could not have been stooking
she could not have been stooking
we could not have been stooking
you could not have been stooking
they could not have been stooking	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I stook?
could you stook?
could she stook?
could we stook?
could you stook?
could they stook? 	could I be stooking?
could you be stooking?
could she be stooking?
could we be stooking?
could you be stooking?
could they be stooking? 	could I have stooked?
could you have stooked?
could she have stooked?
could we have stooked?
could you have stooked?
could they have stooked? 	could I have been stooking?
could you have been stooking?
could she have been stooking?
could we have been stooking?
could you have been stooking?
could they have been stooking? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I not stook?
could you not stook?
could she not stook?
could we not stook?
could you not stook?
could they not stook? 	could I not be stooking?
could you not be stooking?
could she not be stooking?
could we not be stooking?
could you not be stooking?
could they not be stooking? 	could I not have stooked?
could you not have stooked?
could she not have stooked?
could we not have stooked?
could you not have stooked?
could they not have stooked? 	could I not have been stooking?
could you not have been stooking?
could she not have been stooking?
could we not have been stooking?
could you not have been stooking?
could they not have been stooking?