could blue
Verbe régulier : blue - blued- blued

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I could blue
you could blue
she could blue
we could blue
you could blue
they could blue 	I could be bluing
you could be bluing
she could be bluing
we could be bluing
you could be bluing
they could be bluing	I could have blued
you could have blued
she could have blued
we could have blued
you could have blued
they could have blued	I could have been bluing
you could have been bluing
she could have been bluing
we could have been bluing
you could have been bluing
they could have been bluing	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I could not blue
you could not blue
she could not blue
we could not blue
you could not blue
they could not blue 	I could not be bluing
you could not be bluing
she could not be bluing
we could not be bluing
you could not be bluing
they could not be bluing	I could not have blued
you could not have blued
she could not have blued
we could not have blued
you could not have blued
they could not have blued	I could not have been bluing
you could not have been bluing
she could not have been bluing
we could not have been bluing
you could not have been bluing
they could not have been bluing	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
could I blue?
could you blue?
could she blue?
could we blue?
could you blue?
could they blue? 	could I be bluing?
could you be bluing?
could she be bluing?
could we be bluing?
could you be bluing?
could they be bluing? 	could I have blued?
could you have blued?
could she have blued?
could we have blued?
could you have blued?
could they have blued? 	could I have been bluing?
could you have been bluing?
could she have been bluing?
could we have been bluing?
could you have been bluing?
could they have been bluing? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
could I not blue?
could you not blue?
could she not blue?
could we not blue?
could you not blue?
could they not blue? 	could I not be bluing?
could you not be bluing?
could she not be bluing?
could we not be bluing?
could you not be bluing?
could they not be bluing? 	could I not have blued?
could you not have blued?
could she not have blued?
could we not have blued?
could you not have blued?
could they not have blued? 	could I not have been bluing?
could you not have been bluing?
could she not have been bluing?
could we not have been bluing?
could you not have been bluing?
could they not have been bluing?