would darken
Regular verb: darken - darkened- darkened

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I'd darken
you'd darken
she'd darken
we'd darken
you'd darken
they'd darken 	I'd be darkening
you'd be darkening
she'd be darkening
we'd be darkening
you'd be darkening
they'd be darkening	I would've darkened
you would've darkened
she would've darkened
we would've darkened
you would've darkened
they would've darkened	I would've been darkening
you would've been darkening
she would've been darkening
we would've been darkening
you would've been darkening
they would've been darkening	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I wouldn't darken
you wouldn't darken
she wouldn't darken
we wouldn't darken
you wouldn't darken
they wouldn't darken 	I wouldn't be darkening
you wouldn't be darkening
she wouldn't be darkening
we wouldn't be darkening
you wouldn't be darkening
they wouldn't be darkening	I wouldn't have darkened
you wouldn't have darkened
she wouldn't have darkened
we wouldn't have darkened
you wouldn't have darkened
they wouldn't have darkened	I wouldn't have been darkening
you wouldn't have been darkening
she wouldn't have been darkening
we wouldn't have been darkening
you wouldn't have been darkening
they wouldn't have been darkening	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
would I darken?
would you darken?
would she darken?
would we darken?
would you darken?
would they darken? 	would I be darkening?
would you be darkening?
would she be darkening?
would we be darkening?
would you be darkening?
would they be darkening? 	would I have darkened?
would you have darkened?
would she have darkened?
would we have darkened?
would you have darkened?
would they have darkened? 	would I have been darkening?
would you have been darkening?
would she have been darkening?
would we have been darkening?
would you have been darkening?
would they have been darkening? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
wouldn't I darken?
wouldn't you darken?
wouldn't she darken?
wouldn't we darken?
wouldn't you darken?
wouldn't they darken? 	wouldn't I be darkening?
wouldn't you be darkening?
wouldn't she be darkening?
wouldn't we be darkening?
wouldn't you be darkening?
wouldn't they be darkening? 	wouldn't I have darkened?
wouldn't you have darkened?
wouldn't she have darkened?
wouldn't we have darkened?
wouldn't you have darkened?
wouldn't they have darkened? 	wouldn't I have been darkening?
wouldn't you have been darkening?
wouldn't she have been darkening?
wouldn't we have been darkening?
wouldn't you have been darkening?
wouldn't they have been darkening?