could colour
Verbo regular: colour - coloured- coloured

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could colour
you could colour
he could colour
we could colour
you could colour
they could colour 	I could be colouring
you could be colouring
he could be colouring
we could be colouring
you could be colouring
they could be colouring	I could have coloured
you could have coloured
he could have coloured
we could have coloured
you could have coloured
they could have coloured	I could have been colouring
you could have been colouring
he could have been colouring
we could have been colouring
you could have been colouring
they could have been colouring	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could not colour
you could not colour
he could not colour
we could not colour
you could not colour
they could not colour 	I could not be colouring
you could not be colouring
he could not be colouring
we could not be colouring
you could not be colouring
they could not be colouring	I could not have coloured
you could not have coloured
he could not have coloured
we could not have coloured
you could not have coloured
they could not have coloured	I could not have been colouring
you could not have been colouring
he could not have been colouring
we could not have been colouring
you could not have been colouring
they could not have been colouring	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I colour?
could you colour?
could he colour?
could we colour?
could you colour?
could they colour? 	could I be colouring?
could you be colouring?
could he be colouring?
could we be colouring?
could you be colouring?
could they be colouring? 	could I have coloured?
could you have coloured?
could he have coloured?
could we have coloured?
could you have coloured?
could they have coloured? 	could I have been colouring?
could you have been colouring?
could he have been colouring?
could we have been colouring?
could you have been colouring?
could they have been colouring? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I not colour?
could you not colour?
could he not colour?
could we not colour?
could you not colour?
could they not colour? 	could I not be colouring?
could you not be colouring?
could he not be colouring?
could we not be colouring?
could you not be colouring?
could they not be colouring? 	could I not have coloured?
could you not have coloured?
could he not have coloured?
could we not have coloured?
could you not have coloured?
could they not have coloured? 	could I not have been colouring?
could you not have been colouring?
could he not have been colouring?
could we not have been colouring?
could you not have been colouring?
could they not have been colouring?