I. lighten1 [ˈlaıtən] 动词 trans
| I | lighten |
|---|---|
| you | lighten |
| he/she/it | lightens |
| we | lighten |
| you | lighten |
| they | lighten |
| I | lightened |
|---|---|
| you | lightened |
| he/she/it | lightened |
| we | lightened |
| you | lightened |
| they | lightened |
| I | have | lightened |
|---|---|---|
| you | have | lightened |
| he/she/it | has | lightened |
| we | have | lightened |
| you | have | lightened |
| they | have | lightened |
| I | had | lightened |
|---|---|---|
| you | had | lightened |
| he/she/it | had | lightened |
| we | had | lightened |
| you | had | lightened |
| they | had | lightened |