I. track [træk] 名词
| I | track |
|---|---|
| you | track |
| he/she/it | tracks |
| we | track |
| you | track |
| they | track |
| I | tracked |
|---|---|
| you | tracked |
| he/she/it | tracked |
| we | tracked |
| you | tracked |
| they | tracked |
| I | have | tracked |
|---|---|---|
| you | have | tracked |
| he/she/it | has | tracked |
| we | have | tracked |
| you | have | tracked |
| they | have | tracked |
| I | had | tracked |
|---|---|---|
| you | had | tracked |
| he/she/it | had | tracked |
| we | had | tracked |
| you | had | tracked |
| they | had | tracked |