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 couldn't blue
you couldn't blue
she couldn't blue
we couldn't blue
you couldn't blue
they couldn't blue 	I couldn't be bluing
you couldn't be bluing
she couldn't be bluing
we couldn't be bluing
you couldn't be bluing
they couldn't be bluing	I couldn't have blued
you couldn't have blued
she couldn't have blued
we couldn't have blued
you couldn't have blued
they couldn't have blued	I couldn't have been bluing
you couldn't have been bluing
she couldn't have been bluing
we couldn't have been bluing
you couldn't have been bluing
they couldn't 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 	
couldn't I blue?
couldn't you blue?
couldn't she blue?
couldn't we blue?
couldn't you blue?
couldn't they blue? 	couldn't I be bluing?
couldn't you be bluing?
couldn't she be bluing?
couldn't we be bluing?
couldn't you be bluing?
couldn't they be bluing? 	couldn't I have blued?
couldn't you have blued?
couldn't she have blued?
couldn't we have blued?
couldn't you have blued?
couldn't they have blued? 	couldn't I have been bluing?
couldn't you have been bluing?
couldn't she have been bluing?
couldn't we have been bluing?
couldn't you have been bluing?
couldn't they have been bluing?