 
  
 I. ˈsnow·ball 名词
II. ˈsnow·ball 名词 modifier
III. ˈsnow·ball 动词 不及物动词 引
ˈsnow·ball ef·fect 名词 no pl
| I | snowball | 
|---|---|
| you | snowball | 
| he/she/it | snowballs | 
| we | snowball | 
| you | snowball | 
| they | snowball | 
| I | snowballed | 
|---|---|
| you | snowballed | 
| he/she/it | snowballed | 
| we | snowballed | 
| you | snowballed | 
| they | snowballed | 
| I | have | snowballed | 
|---|---|---|
| you | have | snowballed | 
| he/she/it | has | snowballed | 
| we | have | snowballed | 
| you | have | snowballed | 
| they | have | snowballed | 
| I | had | snowballed | 
|---|---|---|
| you | had | snowballed | 
| he/she/it | had | snowballed | 
| we | had | snowballed | 
| you | had | snowballed | 
| they | had | snowballed | 
 
  
 