 
  
 I. beep [bi:p] 动词 trans
II. beep [bi:p] 动词 不及物动词
| I | beep | 
|---|---|
| you | beep | 
| he/she/it | beeps | 
| we | beep | 
| you | beep | 
| they | beep | 
| I | beeped | 
|---|---|
| you | beeped | 
| he/she/it | beeped | 
| we | beeped | 
| you | beeped | 
| they | beeped | 
| I | have | beeped | 
|---|---|---|
| you | have | beeped | 
| he/she/it | has | beeped | 
| we | have | beeped | 
| you | have | beeped | 
| they | have | beeped | 
| I | had | beeped | 
|---|---|---|
| you | had | beeped | 
| he/she/it | had | beeped | 
| we | had | beeped | 
| you | had | beeped | 
| they | had | beeped | 
 
  
 