English verb conjugation
MIGHT LENGTHEN

Regular verb: lengthen - lengthened - lengthened

Affirmation

Simple form	V-ing form
I might lengthen you might lengthen he might lengthen we might lengthen you might lengthen they might lengthen	I might be lengthening you might be lengthening he might be lengthening we might be lengthening you might be lengthening they might be lengthening
Perfect	V-ing perfect
I might have lengthened you might have lengthened he might have lengthened we might have lengthened you might have lengthened they might have lengthened	I might have been lengthening you might have been lengthening he might have been lengthening we might have been lengthening you might have been lengthening they might have been lengthening

Negation

Simple form	V-ing form
I mightn't lengthen you mightn't lengthen he mightn't lengthen we mightn't lengthen you mightn't lengthen they mightn't lengthen	I mightn't be lengthening you mightn't be lengthening he mightn't be lengthening we mightn't be lengthening you mightn't be lengthening they mightn't be lengthening
Perfect	V-ing perfect
I mightn't have lengthened you mightn't have lengthened he mightn't have lengthened we mightn't have lengthened you mightn't have lengthened they mightn't have lengthened	I mightn't have been lengthening you mightn't have been lengthening he mightn't have been lengthening we mightn't have been lengthening you mightn't have been lengthening they mightn't have been lengthening

Interrogative form

Simple form	V-ing form
might I lengthen? might you lengthen? might he lengthen? might we lengthen? might you lengthen? might they lengthen?	might I be lengthening? might you be lengthening? might he be lengthening? might we be lengthening? might you be lengthening? might they be lengthening?
Perfect	V-ing perfect
might I have lengthened? might you have lengthened? might he have lengthened? might we have lengthened? might you have lengthened? might they have lengthened?	might I have been lengthening? might you have been lengthening? might he have been lengthening? might we have been lengthening? might you have been lengthening? might they have been lengthening?

Interro-negative form

Simple form	V-ing form
mightn't I lengthen? mightn't you lengthen? mightn't he lengthen? mightn't we lengthen? mightn't you lengthen? mightn't they lengthen?	mightn't I be lengthening? mightn't you be lengthening? mightn't he be lengthening? mightn't we be lengthening? mightn't you be lengthening? mightn't they be lengthening?
Perfect	V-ing perfect
mightn't I have lengthened? mightn't you have lengthened? mightn't he have lengthened? mightn't we have lengthened? mightn't you have lengthened? mightn't they have lengthened?	mightn't I have been lengthening? mightn't you have been lengthening? mightn't he have been lengthening? mightn't we have been lengthening? mightn't you have been lengthening? mightn't they have been lengthening?