II. tune [tjuːn] 动词 trans (up)
| I | tune | 
|---|---|
| you | tune | 
| he/she/it | tunes | 
| we | tune | 
| you | tune | 
| they | tune | 
| I | tuned | 
|---|---|
| you | tuned | 
| he/she/it | tuned | 
| we | tuned | 
| you | tuned | 
| they | tuned | 
| I | have | tuned | 
|---|---|---|
| you | have | tuned | 
| he/she/it | has | tuned | 
| we | have | tuned | 
| you | have | tuned | 
| they | have | tuned | 
| I | had | tuned | 
|---|---|---|
| you | had | tuned | 
| he/she/it | had | tuned | 
| we | had | tuned | 
| you | had | tuned | 
| they | had | tuned | 
