 
  
 I. grum·ble [ˈgrʌmbl̩] 名词
II. grum·ble [ˈgrʌmbl̩] 动词 不及物动词
 
  
 -  
-  grumbling
| I | grumble | 
|---|---|
| you | grumble | 
| he/she/it | grumbles | 
| we | grumble | 
| you | grumble | 
| they | grumble | 
| I | grumbled | 
|---|---|
| you | grumbled | 
| he/she/it | grumbled | 
| we | grumbled | 
| you | grumbled | 
| they | grumbled | 
| I | have | grumbled | 
|---|---|---|
| you | have | grumbled | 
| he/she/it | has | grumbled | 
| we | have | grumbled | 
| you | have | grumbled | 
| they | have | grumbled | 
| I | had | grumbled | 
|---|---|---|
| you | had | grumbled | 
| he/she/it | had | grumbled | 
| we | had | grumbled | 
| you | had | grumbled | 
| they | had | grumbled | 
