在《PONS词典》中的词汇
can1 <过去式 could; 否定式 can not or cannot or can't> [强 kæn; 弱 kən] 动词 助动词
| I | can | |
|---|---|---|
| you | can | |
| he/she/it | can | |
| we | can | |
| you | can | |
| they | can |
| I | could | |
|---|---|---|
| you | could | |
| he/she/it | could | |
| we | could | |
| you | could | |
| they | could |
| I | have | been able to | |
|---|---|---|---|
| you | have | been able to | |
| he/she/it | has | been able to | |
| we | have | been able to | |
| you | have | been able to | |
| they | have | been able to |
| I | had | been able to | |
|---|---|---|---|
| you | had | been able to | |
| he/she/it | had | been able to | |
| we | had | been able to | |
| you | had | been able to | |
| they | had | been able to |