would quadruple
Regular verb: quadruple - quadrupled- quadrupled

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I'd quadruple
you'd quadruple
he'd quadruple
we'd quadruple
you'd quadruple
they'd quadruple 	I'd be quadrupling
you'd be quadrupling
he'd be quadrupling
we'd be quadrupling
you'd be quadrupling
they'd be quadrupling	I would've quadrupled
you would've quadrupled
he would've quadrupled
we would've quadrupled
you would've quadrupled
they would've quadrupled	I would've been quadrupling
you would've been quadrupling
he would've been quadrupling
we would've been quadrupling
you would've been quadrupling
they would've been quadrupling	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I wouldn't quadruple
you wouldn't quadruple
he wouldn't quadruple
we wouldn't quadruple
you wouldn't quadruple
they wouldn't quadruple 	I wouldn't be quadrupling
you wouldn't be quadrupling
he wouldn't be quadrupling
we wouldn't be quadrupling
you wouldn't be quadrupling
they wouldn't be quadrupling	I wouldn't have quadrupled
you wouldn't have quadrupled
he wouldn't have quadrupled
we wouldn't have quadrupled
you wouldn't have quadrupled
they wouldn't have quadrupled	I wouldn't have been quadrupling
you wouldn't have been quadrupling
he wouldn't have been quadrupling
we wouldn't have been quadrupling
you wouldn't have been quadrupling
they wouldn't have been quadrupling	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
would I quadruple?
would you quadruple?
would he quadruple?
would we quadruple?
would you quadruple?
would they quadruple? 	would I be quadrupling?
would you be quadrupling?
would he be quadrupling?
would we be quadrupling?
would you be quadrupling?
would they be quadrupling? 	would I have quadrupled?
would you have quadrupled?
would he have quadrupled?
would we have quadrupled?
would you have quadrupled?
would they have quadrupled? 	would I have been quadrupling?
would you have been quadrupling?
would he have been quadrupling?
would we have been quadrupling?
would you have been quadrupling?
would they have been quadrupling? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
wouldn't I quadruple?
wouldn't you quadruple?
wouldn't he quadruple?
wouldn't we quadruple?
wouldn't you quadruple?
wouldn't they quadruple? 	wouldn't I be quadrupling?
wouldn't you be quadrupling?
wouldn't he be quadrupling?
wouldn't we be quadrupling?
wouldn't you be quadrupling?
wouldn't they be quadrupling? 	wouldn't I have quadrupled?
wouldn't you have quadrupled?
wouldn't he have quadrupled?
wouldn't we have quadrupled?
wouldn't you have quadrupled?
wouldn't they have quadrupled? 	wouldn't I have been quadrupling?
wouldn't you have been quadrupling?
wouldn't he have been quadrupling?
wouldn't we have been quadrupling?
wouldn't you have been quadrupling?
wouldn't they have been quadrupling?