might strengthen
Regular verb: strengthen - strengthened- strengthened

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I might strengthen
you might strengthen
she might strengthen
we might strengthen
you might strengthen
they might strengthen 	I might be strengthening
you might be strengthening
she might be strengthening
we might be strengthening
you might be strengthening
they might be strengthening	I might have strengthened
you might have strengthened
she might have strengthened
we might have strengthened
you might have strengthened
they might have strengthened	I might have been strengthening
you might have been strengthening
she might have been strengthening
we might have been strengthening
you might have been strengthening
they might have been strengthening	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mightn't strengthen
you mightn't strengthen
she mightn't strengthen
we mightn't strengthen
you mightn't strengthen
they mightn't strengthen 	I mightn't be strengthening
you mightn't be strengthening
she mightn't be strengthening
we mightn't be strengthening
you mightn't be strengthening
they mightn't be strengthening	I mightn't have strengthened
you mightn't have strengthened
she mightn't have strengthened
we mightn't have strengthened
you mightn't have strengthened
they mightn't have strengthened	I mightn't have been strengthening
you mightn't have been strengthening
she mightn't have been strengthening
we mightn't have been strengthening
you mightn't have been strengthening
they mightn't have been strengthening	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
might I strengthen?
might you strengthen?
might she strengthen?
might we strengthen?
might you strengthen?
might they strengthen? 	might I be strengthening?
might you be strengthening?
might she be strengthening?
might we be strengthening?
might you be strengthening?
might they be strengthening? 	might I have strengthened?
might you have strengthened?
might she have strengthened?
might we have strengthened?
might you have strengthened?
might they have strengthened? 	might I have been strengthening?
might you have been strengthening?
might she have been strengthening?
might we have been strengthening?
might you have been strengthening?
might they have been strengthening? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mightn't I strengthen?
mightn't you strengthen?
mightn't she strengthen?
mightn't we strengthen?
mightn't you strengthen?
mightn't they strengthen? 	mightn't I be strengthening?
mightn't you be strengthening?
mightn't she be strengthening?
mightn't we be strengthening?
mightn't you be strengthening?
mightn't they be strengthening? 	mightn't I have strengthened?
mightn't you have strengthened?
mightn't she have strengthened?
mightn't we have strengthened?
mightn't you have strengthened?
mightn't they have strengthened? 	mightn't I have been strengthening?
mightn't you have been strengthening?
mightn't she have been strengthening?
mightn't we have been strengthening?
mightn't you have been strengthening?
mightn't they have been strengthening?