would lighten
Regular verb: lighten - lightened- lightened

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I'd lighten
you'd lighten
he'd lighten
we'd lighten
you'd lighten
they'd lighten 	I'd be lightening
you'd be lightening
he'd be lightening
we'd be lightening
you'd be lightening
they'd be lightening	I would've lightened
you would've lightened
he would've lightened
we would've lightened
you would've lightened
they would've lightened	I would've been lightening
you would've been lightening
he would've been lightening
we would've been lightening
you would've been lightening
they would've been lightening	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I wouldn't lighten
you wouldn't lighten
he wouldn't lighten
we wouldn't lighten
you wouldn't lighten
they wouldn't lighten 	I wouldn't be lightening
you wouldn't be lightening
he wouldn't be lightening
we wouldn't be lightening
you wouldn't be lightening
they wouldn't be lightening	I wouldn't have lightened
you wouldn't have lightened
he wouldn't have lightened
we wouldn't have lightened
you wouldn't have lightened
they wouldn't have lightened	I wouldn't have been lightening
you wouldn't have been lightening
he wouldn't have been lightening
we wouldn't have been lightening
you wouldn't have been lightening
they wouldn't have been lightening	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
would I lighten?
would you lighten?
would he lighten?
would we lighten?
would you lighten?
would they lighten? 	would I be lightening?
would you be lightening?
would he be lightening?
would we be lightening?
would you be lightening?
would they be lightening? 	would I have lightened?
would you have lightened?
would he have lightened?
would we have lightened?
would you have lightened?
would they have lightened? 	would I have been lightening?
would you have been lightening?
would he have been lightening?
would we have been lightening?
would you have been lightening?
would they have been lightening? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
wouldn't I lighten?
wouldn't you lighten?
wouldn't he lighten?
wouldn't we lighten?
wouldn't you lighten?
wouldn't they lighten? 	wouldn't I be lightening?
wouldn't you be lightening?
wouldn't he be lightening?
wouldn't we be lightening?
wouldn't you be lightening?
wouldn't they be lightening? 	wouldn't I have lightened?
wouldn't you have lightened?
wouldn't he have lightened?
wouldn't we have lightened?
wouldn't you have lightened?
wouldn't they have lightened? 	wouldn't I have been lightening?
wouldn't you have been lightening?
wouldn't he have been lightening?
wouldn't we have been lightening?
wouldn't you have been lightening?
wouldn't they have been lightening?