English verb conjugation
OUGHT TO JACKKNIFE

Regular verb: jackknife - jackknifed - jackknifed

Affirmation

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

Negation

Simple form	V-ing form
I ought not to jackknife you ought not to jackknife he ought not to jackknife we ought not to jackknife you ought not to jackknife they ought not to jackknife	I ought not to jackknifing you ought not to jackknifing he ought not to jackknifing we ought not to jackknifing you ought not to jackknifing they ought not to jackknifing
Perfect	V-ing perfect
I ought not to have jackknifed you ought not to have jackknifed he ought not to have jackknifed we ought not to have jackknifed you ought not to have jackknifed they ought not to have jackknifed	I ought not to have been jackknifing you ought not to have been jackknifing he ought not to have been jackknifing we ought not to have been jackknifing you ought not to have been jackknifing they ought not to have been jackknifing

Interrogative form

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

Interro-negative form

Simple form	V-ing form
ought I not to jackknife? ought you not to jackknife? ought he not to jackknife? ought we not to jackknife? ought you not to jackknife? ought they not to jackknife?	ought I not to be jackknifing? ought you not to be jackknifing? ought he not to be jackknifing? ought we not to be jackknifing? ought you not to be jackknifing? ought they not to be jackknifing?
Perfect	V-ing perfect
ought I not to have jackknifed? ought you not to have jackknifed? ought he not to have jackknifed? ought we not to have jackknifed? ought you not to have jackknifed? ought they not to have jackknifed?	ought I not to have been jackknifing? ought you not to have been jackknifing? ought he not to have been jackknifing? ought we not to have been jackknifing? ought you not to have been jackknifing? ought they not to have been jackknifing?