English verb conjugation
MIGHT JACKKNIFE

Regular verb: jackknife - jackknifed - jackknifed

Affirmation

Simple form	V-ing form
I might jackknife you might jackknife he might jackknife we might jackknife you might jackknife they might jackknife	I might be jackknifing you might be jackknifing he might be jackknifing we might be jackknifing you might be jackknifing they might be jackknifing
Perfect	V-ing perfect
I might have jackknifed you might have jackknifed he might have jackknifed we might have jackknifed you might have jackknifed they might have jackknifed	I might have been jackknifing you might have been jackknifing he might have been jackknifing we might have been jackknifing you might have been jackknifing they might have been jackknifing

Negation

Simple form	V-ing form
I mightn't jackknife you mightn't jackknife he mightn't jackknife we mightn't jackknife you mightn't jackknife they mightn't jackknife	I mightn't be jackknifing you mightn't be jackknifing he mightn't be jackknifing we mightn't be jackknifing you mightn't be jackknifing they mightn't be jackknifing
Perfect	V-ing perfect
I mightn't have jackknifed you mightn't have jackknifed he mightn't have jackknifed we mightn't have jackknifed you mightn't have jackknifed they mightn't have jackknifed	I mightn't have been jackknifing you mightn't have been jackknifing he mightn't have been jackknifing we mightn't have been jackknifing you mightn't have been jackknifing they mightn't have been jackknifing

Interrogative form

Simple form	V-ing form
might I jackknife? might you jackknife? might he jackknife? might we jackknife? might you jackknife? might they jackknife?	might I be jackknifing? might you be jackknifing? might he be jackknifing? might we be jackknifing? might you be jackknifing? might they be jackknifing?
Perfect	V-ing perfect
might I have jackknifed? might you have jackknifed? might he have jackknifed? might we have jackknifed? might you have jackknifed? might they have jackknifed?	might I have been jackknifing? might you have been jackknifing? might he have been jackknifing? might we have been jackknifing? might you have been jackknifing? might they have been jackknifing?

Interro-negative form

Simple form	V-ing form
mightn't I jackknife? mightn't you jackknife? mightn't he jackknife? mightn't we jackknife? mightn't you jackknife? mightn't they jackknife?	mightn't I be jackknifing? mightn't you be jackknifing? mightn't he be jackknifing? mightn't we be jackknifing? mightn't you be jackknifing? mightn't they be jackknifing?
Perfect	V-ing perfect
mightn't I have jackknifed? mightn't you have jackknifed? mightn't he have jackknifed? mightn't we have jackknifed? mightn't you have jackknifed? mightn't they have jackknifed?	mightn't I have been jackknifing? mightn't you have been jackknifing? mightn't he have been jackknifing? mightn't we have been jackknifing? mightn't you have been jackknifing? mightn't they have been jackknifing?