| I | expound |
|---|---|
| you | expound |
| he/she/it | expounds |
| we | expound |
| you | expound |
| they | expound |
| I | expounded |
|---|---|
| you | expounded |
| he/she/it | expounded |
| we | expounded |
| you | expounded |
| they | expounded |
| I | have | expounded |
|---|---|---|
| you | have | expounded |
| he/she/it | has | expounded |
| we | have | expounded |
| you | have | expounded |
| they | have | expounded |
| I | had | expounded |
|---|---|---|
| you | had | expounded |
| he/she/it | had | expounded |
| we | had | expounded |
| you | had | expounded |
| they | had | expounded |
单语范例（未经PONS编辑处理）
This secondary school has been expanded in recent years, with the opening of a new building in 2002.
en.wikipedia.org In this period the magazine expanded to its present position in the marketplace.
en.wikipedia.org The show was originally planned for only 2 nights, but was later expanded to 4 due to large sold-out crowds.
en.wikipedia.org Beginning with the 1985 season, it expanded to the top 25.
en.wikipedia.org Twice during their ownership, the house was expanded.
en.wikipedia.org