I. train [treın] 名词
| I | train |
|---|---|
| you | train |
| he/she/it | trains |
| we | train |
| you | train |
| they | train |
| I | trained |
|---|---|
| you | trained |
| he/she/it | trained |
| we | trained |
| you | trained |
| they | trained |
| I | have | trained |
|---|---|---|
| you | have | trained |
| he/she/it | has | trained |
| we | have | trained |
| you | have | trained |
| they | have | trained |
| I | had | trained |
|---|---|---|
| you | had | trained |
| he/she/it | had | trained |
| we | had | trained |
| you | had | trained |
| they | had | trained |