 
  
 ex·ist [ɪgˈzɪst, egˈ-] 动词 不及物动词
1. exist (be):
2. exist:
I. pre-ex·ist [ˌpri:ɪgˈzɪst] 书 动词 不及物动词
-  
-  präexistieren 技术用语
 
  
 | I | exist | 
|---|---|
| you | exist | 
| he/she/it | exists | 
| we | exist | 
| you | exist | 
| they | exist | 
| I | existed | 
|---|---|
| you | existed | 
| he/she/it | existed | 
| we | existed | 
| you | existed | 
| they | existed | 
| I | have | existed | 
|---|---|---|
| you | have | existed | 
| he/she/it | has | existed | 
| we | have | existed | 
| you | have | existed | 
| they | have | existed | 
| I | had | existed | 
|---|---|---|
| you | had | existed | 
| he/she/it | had | existed | 
| we | had | existed | 
| you | had | existed | 
| they | had | existed | 
