II. challenge [ˈtʃælındʒ] 动词 trans
| I | challenge |
|---|---|
| you | challenge |
| he/she/it | challenges |
| we | challenge |
| you | challenge |
| they | challenge |
| I | challenged |
|---|---|
| you | challenged |
| he/she/it | challenged |
| we | challenged |
| you | challenged |
| they | challenged |
| I | have | challenged |
|---|---|---|
| you | have | challenged |
| he/she/it | has | challenged |
| we | have | challenged |
| you | have | challenged |
| they | have | challenged |
| I | had | challenged |
|---|---|---|
| you | had | challenged |
| he/she/it | had | challenged |
| we | had | challenged |
| you | had | challenged |
| they | had | challenged |