I. demonstrate [ˈdemənstreıt] 动词 trans
| I | demonstrate |
|---|---|
| you | demonstrate |
| he/she/it | demonstrates |
| we | demonstrate |
| you | demonstrate |
| they | demonstrate |
| I | demonstrated |
|---|---|
| you | demonstrated |
| he/she/it | demonstrated |
| we | demonstrated |
| you | demonstrated |
| they | demonstrated |
| I | have | demonstrated |
|---|---|---|
| you | have | demonstrated |
| he/she/it | has | demonstrated |
| we | have | demonstrated |
| you | have | demonstrated |
| they | have | demonstrated |
| I | had | demonstrated |
|---|---|---|
| you | had | demonstrated |
| he/she/it | had | demonstrated |
| we | had | demonstrated |
| you | had | demonstrated |
| they | had | demonstrated |