I. extend [ıkˈstend] 动词 trans
| I | extend | 
|---|---|
| you | extend | 
| he/she/it | extends | 
| we | extend | 
| you | extend | 
| they | extend | 
| I | extended | 
|---|---|
| you | extended | 
| he/she/it | extended | 
| we | extended | 
| you | extended | 
| they | extended | 
| I | have | extended | 
|---|---|---|
| you | have | extended | 
| he/she/it | has | extended | 
| we | have | extended | 
| you | have | extended | 
| they | have | extended | 
| I | had | extended | 
|---|---|---|
| you | had | extended | 
| he/she/it | had | extended | 
| we | had | extended | 
| you | had | extended | 
| they | had | extended | 
