在《PONS词典》中的词汇
know about 动词 不及物动词
| I | know about | |
|---|---|---|
| you | know about | |
| he/she/it | knows about | |
| we | know about | |
| you | know about | |
| they | know about |
| I | knew about | |
|---|---|---|
| you | knew about | |
| he/she/it | knew about | |
| we | knew about | |
| you | knew about | |
| they | knew about |
| I | have | known about | |
|---|---|---|---|
| you | have | known about | |
| he/she/it | has | known about | |
| we | have | known about | |
| you | have | known about | |
| they | have | known about |
| I | had | known about | |
|---|---|---|---|
| you | had | known about | |
| he/she/it | had | known about | |
| we | had | known about | |
| you | had | known about | |
| they | had | known about |