| I | harden |
|---|---|
| you | harden |
| he/she/it | hardens |
| we | harden |
| you | harden |
| they | harden |
| I | hardened |
|---|---|
| you | hardened |
| he/she/it | hardened |
| we | hardened |
| you | hardened |
| they | hardened |
| I | have | hardened |
|---|---|---|
| you | have | hardened |
| he/she/it | has | hardened |
| we | have | hardened |
| you | have | hardened |
| they | have | hardened |
| I | had | hardened |
|---|---|---|
| you | had | hardened |
| he/she/it | had | hardened |
| we | had | hardened |
| you | had | hardened |
| they | had | hardened |
无例句可用
请尝试其他条目。