to quadruple
Regular verb: quadruple - quadrupled- quadrupled

Indicative 	
Present 	Present continuous 	Preterite 	Preterite continuous 	
I quadruple
you quadruple
he quadruples
we quadruple
you quadruple
they quadruple 	I'mquadrupling
you'requadrupling
he'squadrupling
we'requadrupling
you'requadrupling
they'requadrupling	I quadrupled
you quadrupled
he quadrupled
we quadrupled
you quadrupled
they quadrupled	Iwasquadrupling
youwerequadrupling
hewasquadrupling
wewerequadrupling
youwerequadrupling
theywerequadrupling	
Present perfect 	Present perfect continuous 	Pluperfect 	Pluperfect continuous 	
I've quadrupled
you've quadrupled
he's quadrupled
we've quadrupled
you've quadrupled
they've quadrupled	I'vebeen quadrupling
you'vebeen quadrupling
he'sbeen quadrupling
we'vebeen quadrupling
you'vebeen quadrupling
they'vebeen quadrupling	I'd quadrupled
you'd quadrupled
he'd quadrupled
we'd quadrupled
you'd quadrupled
they'd quadrupled	I'd been quadrupling
you'd been quadrupling
he'd been quadrupling
we'd been quadrupling
you'd been quadrupling
they'd been quadrupling	
Future 	Future continuous 	Future perfect 	Future perfect continuous 	
I'll quadruple
you'll quadruple
he'll quadruple
we'll quadruple
you'll quadruple
they'll quadruple 	I'll be quadrupling
you'll be quadrupling
he'll be quadrupling
we'll be quadrupling
you'll be quadrupling
they'll be quadrupling	I'll have quadrupled
you'll have quadrupled
he'll have quadrupled
we'll have quadrupled
you'll have quadrupled
they'll have quadrupled	I'll have been quadrupling
you'll have been quadrupling
he'll have been quadrupling
we'll have been quadrupling
you'll have been quadrupling
they'll have been quadrupling	

Conditional 	
Present 	Present continuous 	Past 	Past continuous 	
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'd have quadrupled
you'd have quadrupled
he'd have quadrupled
we'd have quadrupled
you'd have quadrupled
they'd have quadrupled	I'd have been quadrupling
you'd have been quadrupling
he'd have been quadrupling
we'd have been quadrupling
you'd have been quadrupling
they'd have been quadrupling	

Infinitive 	
Imperative 	
Infinitive 	 	Imperative 	 	
to quadruple 	 	quadruple
Let's quadruple
quadruple 	 	

Participle 	
Present 	Past 	 	 	
quadrupling	quadrupled