could discolour
Verbe régulier : discolour - discoloured- discoloured
Traduction française : (UK) décolorer - se décolorer 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I could discolour
you could discolour
she could discolour
we could discolour
you could discolour
they could discolour 	I could be discolouring
you could be discolouring
she could be discolouring
we could be discolouring
you could be discolouring
they could be discolouring	I could have discoloured
you could have discoloured
she could have discoloured
we could have discoloured
you could have discoloured
they could have discoloured	I could have been discolouring
you could have been discolouring
she could have been discolouring
we could have been discolouring
you could have been discolouring
they could have been discolouring	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I couldn't discolour
you couldn't discolour
she couldn't discolour
we couldn't discolour
you couldn't discolour
they couldn't discolour 	I couldn't be discolouring
you couldn't be discolouring
she couldn't be discolouring
we couldn't be discolouring
you couldn't be discolouring
they couldn't be discolouring	I couldn't have discoloured
you couldn't have discoloured
she couldn't have discoloured
we couldn't have discoloured
you couldn't have discoloured
they couldn't have discoloured	I couldn't have been discolouring
you couldn't have been discolouring
she couldn't have been discolouring
we couldn't have been discolouring
you couldn't have been discolouring
they couldn't have been discolouring	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
could I discolour?
could you discolour?
could she discolour?
could we discolour?
could you discolour?
could they discolour? 	could I be discolouring?
could you be discolouring?
could she be discolouring?
could we be discolouring?
could you be discolouring?
could they be discolouring? 	could I have discoloured?
could you have discoloured?
could she have discoloured?
could we have discoloured?
could you have discoloured?
could they have discoloured? 	could I have been discolouring?
could you have been discolouring?
could she have been discolouring?
could we have been discolouring?
could you have been discolouring?
could they have been discolouring? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
couldn't I discolour?
couldn't you discolour?
couldn't she discolour?
couldn't we discolour?
couldn't you discolour?
couldn't they discolour? 	couldn't I be discolouring?
couldn't you be discolouring?
couldn't she be discolouring?
couldn't we be discolouring?
couldn't you be discolouring?
couldn't they be discolouring? 	couldn't I have discoloured?
couldn't you have discoloured?
couldn't she have discoloured?
couldn't we have discoloured?
couldn't you have discoloured?
couldn't they have discoloured? 	couldn't I have been discolouring?
couldn't you have been discolouring?
couldn't she have been discolouring?
couldn't we have been discolouring?
couldn't you have been discolouring?
couldn't they have been discolouring?