I. buy <bought> [baı] 动词 trans
| I | buy |
|---|---|
| you | buy |
| he/she/it | buys |
| we | buy |
| you | buy |
| they | buy |
| I | bought |
|---|---|
| you | bought |
| he/she/it | bought |
| we | bought |
| you | bought |
| they | bought |
| I | have | bought |
|---|---|---|
| you | have | bought |
| he/she/it | has | bought |
| we | have | bought |
| you | have | bought |
| they | have | bought |
| I | had | bought |
|---|---|---|
| you | had | bought |
| he/she/it | had | bought |
| we | had | bought |
| you | had | bought |
| they | had | bought |