might quintuple
Regular verb: quintuple - quintupled- quintupled

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I might quintuple
you might quintuple
she might quintuple
we might quintuple
you might quintuple
they might quintuple 	I might be quintupling
you might be quintupling
she might be quintupling
we might be quintupling
you might be quintupling
they might be quintupling	I might have quintupled
you might have quintupled
she might have quintupled
we might have quintupled
you might have quintupled
they might have quintupled	I might have been quintupling
you might have been quintupling
she might have been quintupling
we might have been quintupling
you might have been quintupling
they might have been quintupling	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mightn't quintuple
you mightn't quintuple
she mightn't quintuple
we mightn't quintuple
you mightn't quintuple
they mightn't quintuple 	I mightn't be quintupling
you mightn't be quintupling
she mightn't be quintupling
we mightn't be quintupling
you mightn't be quintupling
they mightn't be quintupling	I mightn't have quintupled
you mightn't have quintupled
she mightn't have quintupled
we mightn't have quintupled
you mightn't have quintupled
they mightn't have quintupled	I mightn't have been quintupling
you mightn't have been quintupling
she mightn't have been quintupling
we mightn't have been quintupling
you mightn't have been quintupling
they mightn't have been quintupling	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
might I quintuple?
might you quintuple?
might she quintuple?
might we quintuple?
might you quintuple?
might they quintuple? 	might I be quintupling?
might you be quintupling?
might she be quintupling?
might we be quintupling?
might you be quintupling?
might they be quintupling? 	might I have quintupled?
might you have quintupled?
might she have quintupled?
might we have quintupled?
might you have quintupled?
might they have quintupled? 	might I have been quintupling?
might you have been quintupling?
might she have been quintupling?
might we have been quintupling?
might you have been quintupling?
might they have been quintupling? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mightn't I quintuple?
mightn't you quintuple?
mightn't she quintuple?
mightn't we quintuple?
mightn't you quintuple?
mightn't they quintuple? 	mightn't I be quintupling?
mightn't you be quintupling?
mightn't she be quintupling?
mightn't we be quintupling?
mightn't you be quintupling?
mightn't they be quintupling? 	mightn't I have quintupled?
mightn't you have quintupled?
mightn't she have quintupled?
mightn't we have quintupled?
mightn't you have quintupled?
mightn't they have quintupled? 	mightn't I have been quintupling?
mightn't you have been quintupling?
mightn't she have been quintupling?
mightn't we have been quintupling?
mightn't you have been quintupling?
mightn't they have been quintupling?