| I | jackknife | |
|---|---|---|
| you | jackknife | |
| he/she/it | jackknifes | |
| we | jackknife | |
| you | jackknife | |
| they | jackknife |
| I | jackknifed | |
|---|---|---|
| you | jackknifed | |
| he/she/it | jackknifed | |
| we | jackknifed | |
| you | jackknifed | |
| they | jackknifed |
| I | have | jackknifed | |
|---|---|---|---|
| you | have | jackknifed | |
| he/she/it | has | jackknifed | |
| we | have | jackknifed | |
| you | have | jackknifed | |
| they | have | jackknifed |
| I | had | jackknifed | |
|---|---|---|---|
| you | had | jackknifed | |
| he/she/it | had | jackknifed | |
| we | had | jackknifed | |
| you | had | jackknifed | |
| they | had | jackknifed |
无例句可用
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