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 	Iamquadrupling
youarequadrupling
heisquadrupling
wearequadrupling
youarequadrupling
theyarequadrupling	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 have quadrupled
you have quadrupled
he has quadrupled
we have quadrupled
you have quadrupled
they have quadrupled	I have been quadrupling
you have been quadrupling
hehasbeen quadrupling
we have been quadrupling
you have been quadrupling
they have been quadrupling	I had quadrupled
you had quadrupled
he had quadrupled
we had quadrupled
you had quadrupled
they had quadrupled	I had been quadrupling
you had been quadrupling
he had been quadrupling
we had been quadrupling
you had been quadrupling
they had been quadrupling	
Future 	Future continuous 	Future perfect 	Future perfect continuous 	
I will quadruple
you will quadruple
he will quadruple
we will quadruple
you will quadruple
they will quadruple 	I will be quadrupling
you will be quadrupling
he will be quadrupling
we will be quadrupling
you will be quadrupling
they will be quadrupling	I will have quadrupled
you will have quadrupled
he will have quadrupled
we will have quadrupled
you will have quadrupled
they will have quadrupled	I will have been quadrupling
you will have been quadrupling
he will have been quadrupling
we will have been quadrupling
you will have been quadrupling
they will have been quadrupling	

Conditional 	
Present 	Present continuous 	Past 	Past continuous 	
I would quadruple
you would quadruple
he would quadruple
we would quadruple
you would quadruple
they would quadruple 	I would be quadrupling
you would be quadrupling
he would be quadrupling
we would be quadrupling
you would be quadrupling
they would be quadrupling	I would have quadrupled
you would have quadrupled
he would have quadrupled
we would have quadrupled
you would have quadrupled
they would have quadrupled	I would have been quadrupling
you would have been quadrupling
he would have been quadrupling
we would have been quadrupling
you would have been quadrupling
they would have been quadrupling	

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

Participle 	
Present 	Past 	 	 	
quadrupling	quadrupled