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 | 
