would whiten
Regular verb: whiten - whitened- whitened

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I'd whiten
you'd whiten
he'd whiten
we'd whiten
you'd whiten
they'd whiten 	I'd be whitening
you'd be whitening
he'd be whitening
we'd be whitening
you'd be whitening
they'd be whitening	I would've whitened
you would've whitened
he would've whitened
we would've whitened
you would've whitened
they would've whitened	I would've been whitening
you would've been whitening
he would've been whitening
we would've been whitening
you would've been whitening
they would've been whitening	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I wouldn't whiten
you wouldn't whiten
he wouldn't whiten
we wouldn't whiten
you wouldn't whiten
they wouldn't whiten 	I wouldn't be whitening
you wouldn't be whitening
he wouldn't be whitening
we wouldn't be whitening
you wouldn't be whitening
they wouldn't be whitening	I wouldn't have whitened
you wouldn't have whitened
he wouldn't have whitened
we wouldn't have whitened
you wouldn't have whitened
they wouldn't have whitened	I wouldn't have been whitening
you wouldn't have been whitening
he wouldn't have been whitening
we wouldn't have been whitening
you wouldn't have been whitening
they wouldn't have been whitening	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
would I whiten?
would you whiten?
would he whiten?
would we whiten?
would you whiten?
would they whiten? 	would I be whitening?
would you be whitening?
would he be whitening?
would we be whitening?
would you be whitening?
would they be whitening? 	would I have whitened?
would you have whitened?
would he have whitened?
would we have whitened?
would you have whitened?
would they have whitened? 	would I have been whitening?
would you have been whitening?
would he have been whitening?
would we have been whitening?
would you have been whitening?
would they have been whitening? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
wouldn't I whiten?
wouldn't you whiten?
wouldn't he whiten?
wouldn't we whiten?
wouldn't you whiten?
wouldn't they whiten? 	wouldn't I be whitening?
wouldn't you be whitening?
wouldn't he be whitening?
wouldn't we be whitening?
wouldn't you be whitening?
wouldn't they be whitening? 	wouldn't I have whitened?
wouldn't you have whitened?
wouldn't he have whitened?
wouldn't we have whitened?
wouldn't you have whitened?
wouldn't they have whitened? 	wouldn't I have been whitening?
wouldn't you have been whitening?
wouldn't he have been whitening?
wouldn't we have been whitening?
wouldn't you have been whitening?
wouldn't they have been whitening?