would blacken
Regular verb: blacken - blackened- blackened

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I'd blacken
you'd blacken
she'd blacken
we'd blacken
you'd blacken
they'd blacken 	I'd be blackening
you'd be blackening
she'd be blackening
we'd be blackening
you'd be blackening
they'd be blackening	I would've blackened
you would've blackened
she would've blackened
we would've blackened
you would've blackened
they would've blackened	I would've been blackening
you would've been blackening
she would've been blackening
we would've been blackening
you would've been blackening
they would've been blackening	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I wouldn't blacken
you wouldn't blacken
she wouldn't blacken
we wouldn't blacken
you wouldn't blacken
they wouldn't blacken 	I wouldn't be blackening
you wouldn't be blackening
she wouldn't be blackening
we wouldn't be blackening
you wouldn't be blackening
they wouldn't be blackening	I wouldn't have blackened
you wouldn't have blackened
she wouldn't have blackened
we wouldn't have blackened
you wouldn't have blackened
they wouldn't have blackened	I wouldn't have been blackening
you wouldn't have been blackening
she wouldn't have been blackening
we wouldn't have been blackening
you wouldn't have been blackening
they wouldn't have been blackening	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
would I blacken?
would you blacken?
would she blacken?
would we blacken?
would you blacken?
would they blacken? 	would I be blackening?
would you be blackening?
would she be blackening?
would we be blackening?
would you be blackening?
would they be blackening? 	would I have blackened?
would you have blackened?
would she have blackened?
would we have blackened?
would you have blackened?
would they have blackened? 	would I have been blackening?
would you have been blackening?
would she have been blackening?
would we have been blackening?
would you have been blackening?
would they have been blackening? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
wouldn't I blacken?
wouldn't you blacken?
wouldn't she blacken?
wouldn't we blacken?
wouldn't you blacken?
wouldn't they blacken? 	wouldn't I be blackening?
wouldn't you be blackening?
wouldn't she be blackening?
wouldn't we be blackening?
wouldn't you be blackening?
wouldn't they be blackening? 	wouldn't I have blackened?
wouldn't you have blackened?
wouldn't she have blackened?
wouldn't we have blackened?
wouldn't you have blackened?
wouldn't they have blackened? 	wouldn't I have been blackening?
wouldn't you have been blackening?
wouldn't she have been blackening?
wouldn't we have been blackening?
wouldn't you have been blackening?
wouldn't they have been blackening?