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Other forms without ? | remove negation | female gender | remove contraction
Modal : no | may | might | can | could | shall | should | will | would | must | ought to

English verb conjugation TO JACKKNIFE

Regular verb: jackknife - jackknifed - jackknifed

Indicative

Present
don't I jackknife?
don't you jackknife?
doesn't he jackknife?
don't we jackknife?
don't you jackknife?
don't they jackknife?
Present continuous
am I not jackknifing?
aren't you jackknifing?
isn't he jackknifing?
aren't we jackknifing?
aren't you jackknifing?
aren't they jackknifing?
Preterite
didn't I jackknife?
didn't you jackknife?
didn't he jackknife?
didn't we jackknife?
didn't you jackknife?
didn't they jackknife?
Preterite continuous
wasn't I jackknifing?
weren't you jackknifing?
wasn't he jackknifing?
weren't we jackknifing?
weren't you jackknifing?
weren't they jackknifing?
Present perfect
haven't I jackknifed?
haven't you jackknifed?
hasn't he jackknifed?
haven't we jackknifed?
haven't you jackknifed?
haven't they jackknifed?
Present perfect continuous
haven't I been jackknifing?
haven't you been jackknifing?
hasn't he been jackknifing?
haven't we been jackknifing?
haven't you been jackknifing?
haven't they been jackknifing?
Pluperfect
hadn't I jackknifed?
hadn't you jackknifed?
hadn't he jackknifed?
hadn't we jackknifed?
hadn't you jackknifed?
hadn't they jackknifed?
Pluperfect continuous
hadn't I been jackknifing?
hadn't you been jackknifing?
hadn't he been jackknifing?
hadn't we been jackknifing?
hadn't you been jackknifing?
hadn't they been jackknifing?
Future
won't I jackknife?
won't you jackknife?
won't he jackknife?
won't we jackknife?
won't you jackknife?
won't they jackknife?
Future continuous
won't I be jackknifing?
won't you be jackknifing?
won't he be jackknifing?
won't we be jackknifing?
won't you be jackknifing?
won't they be jackknifing?
Future perfect
won't I have jackknifed?
won't you have jackknifed?
won't he have jackknifed?
won't we have jackknifed?
won't you have jackknifed?
won't they have jackknifed?
Future perfect continuous
won't I have been jackknifing?
won't you have been jackknifing?
won't he have been jackknifing?
won't we have been jackknifing?
won't you have been jackknifing?
won't they have been jackknifing?

Conditional

Present
wouldn't I jackknife?
wouldn't you jackknife?
wouldn't he jackknife?
wouldn't we jackknife?
wouldn't you jackknife?
wouldn't they jackknife?
Present continuous
wouldn't I be jackknifing?
wouldn't you be jackknifing?
wouldn't he be jackknifing?
wouldn't we be jackknifing?
wouldn't you be jackknifing?
wouldn't they be jackknifing?
Past
wouldn't I have jackknifed?
wouldn't you have jackknifed?
wouldn't he have jackknifed?
wouldn't we have jackknifed?
wouldn't you have jackknifed?
wouldn't they have jackknifed?
Past continuous
wouldn't I have been jackknifing?
wouldn't you have been jackknifing?
wouldn't he have been jackknifing?
wouldn't we have been jackknifing?
wouldn't you have been jackknifing?
wouldn't they have been jackknifing?

Imperative

Imperative
-
-
-
 
 
 

Infinitive

Infinitive
to jackknife
 
 
 

Participle

Present
jackknifing
Past
jackknifed