English verb conjugation
TO JACKKNIFE
Regular verb: jackknife - jackknifed - jackknifed
Present | Present continuous | Preterite | Preterite continuous |
| don't I jackknife? don't you jackknife? doesn't he jackknife? don't we jackknife? don't you jackknife? don't they jackknife? | am I not jackknifing? aren't you jackknifing? isn't he jackknifing? aren't we jackknifing? aren't you jackknifing? aren't they jackknifing? | didn't I jackknife? didn't you jackknife? didn't he jackknife? didn't we jackknife? didn't you jackknife? didn't they jackknife? | 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 | Present perfect continuous | Pluperfect | Pluperfect continuous |
| haven't I jackknifed? haven't you jackknifed? hasn't he jackknifed? haven't we jackknifed? haven't you jackknifed? haven't they jackknifed? | 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? | hadn't I jackknifed? hadn't you jackknifed? hadn't he jackknifed? hadn't we jackknifed? hadn't you jackknifed? hadn't they jackknifed? | 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 | Future continuous | Future perfect | Future perfect continuous |
| won't I jackknife? won't you jackknife? won't he jackknife? won't we jackknife? won't you jackknife? won't they jackknife? | 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? | 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? | 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? |
Present | Present continuous | Past | Past continuous |
| wouldn't I jackknife? wouldn't you jackknife? wouldn't he jackknife? wouldn't we jackknife? wouldn't you jackknife? wouldn't they jackknife? | 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? | 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? | 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? |
Infinitive | Imperative |
Infinitive | Imperative | ||
| to jackknife | - - - |
Present | Past | ||
| jackknifing | jackknifed |