| I | slack | 
|---|---|
| you | slack | 
| he/she/it | slacks | 
| we | slack | 
| you | slack | 
| they | slack | 
| I | slacked | 
|---|---|
| you | slacked | 
| he/she/it | slacked | 
| we | slacked | 
| you | slacked | 
| they | slacked | 
| I | have | slacked | 
|---|---|---|
| you | have | slacked | 
| he/she/it | has | slacked | 
| we | have | slacked | 
| you | have | slacked | 
| they | have | slacked | 
| I | had | slacked | 
|---|---|---|
| you | had | slacked | 
| he/she/it | had | slacked | 
| we | had | slacked | 
| you | had | slacked | 
| they | had | slacked | 
无例句可用
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