could blacken
Regelmä&szlig;iges Verb: blacken - blackened- blackened

Bestätigung 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
I could blacken
you could blacken
she could blacken
we could blacken
you could blacken
they could blacken 	I could be blackening
you could be blackening
she could be blackening
we could be blackening
you could be blackening
they could be blackening	I could have blackened
you could have blackened
she could have blackened
we could have blackened
you could have blackened
they could have blackened	I could have been blackening
you could have been blackening
she could have been blackening
we could have been blackening
you could have been blackening
they could have been blackening	

Negation 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
I could not blacken
you could not blacken
she could not blacken
we could not blacken
you could not blacken
they could not blacken 	I could not be blackening
you could not be blackening
she could not be blackening
we could not be blackening
you could not be blackening
they could not be blackening	I could not have blackened
you could not have blackened
she could not have blackened
we could not have blackened
you could not have blackened
they could not have blackened	I could not have been blackening
you could not have been blackening
she could not have been blackening
we could not have been blackening
you could not have been blackening
they could not have been blackening	

Fragende Form 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
could I blacken?
could you blacken?
could she blacken?
could we blacken?
could you blacken?
could they blacken? 	could I be blackening?
could you be blackening?
could she be blackening?
could we be blackening?
could you be blackening?
could they be blackening? 	could I have blackened?
could you have blackened?
could she have blackened?
could we have blackened?
could you have blackened?
could they have blackened? 	could I have been blackening?
could you have been blackening?
could she have been blackening?
could we have been blackening?
could you have been blackening?
could they have been blackening? 	

Fragende Negation Form 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
could I not blacken?
could you not blacken?
could she not blacken?
could we not blacken?
could you not blacken?
could they not blacken? 	could I not be blackening?
could you not be blackening?
could she not be blackening?
could we not be blackening?
could you not be blackening?
could they not be blackening? 	could I not have blackened?
could you not have blackened?
could she not have blackened?
could we not have blackened?
could you not have blackened?
could they not have blackened? 	could I not have been blackening?
could you not have been blackening?
could she not have been blackening?
could we not have been blackening?
could you not have been blackening?
could they not have been blackening?