might extinguish
Regular verb: extinguish - extinguished- extinguished

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I might extinguish
you might extinguish
she might extinguish
we might extinguish
you might extinguish
they might extinguish 	I might be extinguishing
you might be extinguishing
she might be extinguishing
we might be extinguishing
you might be extinguishing
they might be extinguishing	I might have extinguished
you might have extinguished
she might have extinguished
we might have extinguished
you might have extinguished
they might have extinguished	I might have been extinguishing
you might have been extinguishing
she might have been extinguishing
we might have been extinguishing
you might have been extinguishing
they might have been extinguishing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mightn't extinguish
you mightn't extinguish
she mightn't extinguish
we mightn't extinguish
you mightn't extinguish
they mightn't extinguish 	I mightn't be extinguishing
you mightn't be extinguishing
she mightn't be extinguishing
we mightn't be extinguishing
you mightn't be extinguishing
they mightn't be extinguishing	I mightn't have extinguished
you mightn't have extinguished
she mightn't have extinguished
we mightn't have extinguished
you mightn't have extinguished
they mightn't have extinguished	I mightn't have been extinguishing
you mightn't have been extinguishing
she mightn't have been extinguishing
we mightn't have been extinguishing
you mightn't have been extinguishing
they mightn't have been extinguishing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
might I extinguish?
might you extinguish?
might she extinguish?
might we extinguish?
might you extinguish?
might they extinguish? 	might I be extinguishing?
might you be extinguishing?
might she be extinguishing?
might we be extinguishing?
might you be extinguishing?
might they be extinguishing? 	might I have extinguished?
might you have extinguished?
might she have extinguished?
might we have extinguished?
might you have extinguished?
might they have extinguished? 	might I have been extinguishing?
might you have been extinguishing?
might she have been extinguishing?
might we have been extinguishing?
might you have been extinguishing?
might they have been extinguishing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mightn't I extinguish?
mightn't you extinguish?
mightn't she extinguish?
mightn't we extinguish?
mightn't you extinguish?
mightn't they extinguish? 	mightn't I be extinguishing?
mightn't you be extinguishing?
mightn't she be extinguishing?
mightn't we be extinguishing?
mightn't you be extinguishing?
mightn't they be extinguishing? 	mightn't I have extinguished?
mightn't you have extinguished?
mightn't she have extinguished?
mightn't we have extinguished?
mightn't you have extinguished?
mightn't they have extinguished? 	mightn't I have been extinguishing?
mightn't you have been extinguishing?
mightn't she have been extinguishing?
mightn't we have been extinguishing?
mightn't you have been extinguishing?
mightn't they have been extinguishing?