could black
Verbe régulier : black - blacked- blacked
Traduction française : noircir (UK) - boycotter 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I could black
you could black
she could black
we could black
you could black
they could black 	I could be blacking
you could be blacking
she could be blacking
we could be blacking
you could be blacking
they could be blacking	I could have blacked
you could have blacked
she could have blacked
we could have blacked
you could have blacked
they could have blacked	I could have been blacking
you could have been blacking
she could have been blacking
we could have been blacking
you could have been blacking
they could have been blacking	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I couldn't black
you couldn't black
she couldn't black
we couldn't black
you couldn't black
they couldn't black 	I couldn't be blacking
you couldn't be blacking
she couldn't be blacking
we couldn't be blacking
you couldn't be blacking
they couldn't be blacking	I couldn't have blacked
you couldn't have blacked
she couldn't have blacked
we couldn't have blacked
you couldn't have blacked
they couldn't have blacked	I couldn't have been blacking
you couldn't have been blacking
she couldn't have been blacking
we couldn't have been blacking
you couldn't have been blacking
they couldn't have been blacking	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
could I black?
could you black?
could she black?
could we black?
could you black?
could they black? 	could I be blacking?
could you be blacking?
could she be blacking?
could we be blacking?
could you be blacking?
could they be blacking? 	could I have blacked?
could you have blacked?
could she have blacked?
could we have blacked?
could you have blacked?
could they have blacked? 	could I have been blacking?
could you have been blacking?
could she have been blacking?
could we have been blacking?
could you have been blacking?
could they have been blacking? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
couldn't I black?
couldn't you black?
couldn't she black?
couldn't we black?
couldn't you black?
couldn't they black? 	couldn't I be blacking?
couldn't you be blacking?
couldn't she be blacking?
couldn't we be blacking?
couldn't you be blacking?
couldn't they be blacking? 	couldn't I have blacked?
couldn't you have blacked?
couldn't she have blacked?
couldn't we have blacked?
couldn't you have blacked?
couldn't they have blacked? 	couldn't I have been blacking?
couldn't you have been blacking?
couldn't she have been blacking?
couldn't we have been blacking?
couldn't you have been blacking?
couldn't they have been blacking?