| I | propound |
|---|---|
| you | propound |
| he/she/it | propounds |
| we | propound |
| you | propound |
| they | propound |
| I | propounded |
|---|---|
| you | propounded |
| he/she/it | propounded |
| we | propounded |
| you | propounded |
| they | propounded |
| I | have | propounded |
|---|---|---|
| you | have | propounded |
| he/she/it | has | propounded |
| we | have | propounded |
| you | have | propounded |
| they | have | propounded |
| I | had | propounded |
|---|---|---|
| you | had | propounded |
| he/she/it | had | propounded |
| we | had | propounded |
| you | had | propounded |
| they | had | propounded |
单语范例（未经PONS编辑处理）
Many theories were propounded about the death, but the investigation stalled because of a lack of evidence.
en.wikipedia.org According to modern scholars, it propounds a dualistic philosophy.
en.wikipedia.org He propounded the theory that "ananda" (happiness or bliss) should be the touchstone of any human activity.
en.wikipedia.org Various theories were propounded as to these, and widely debated in the local media.
en.wikipedia.org He may sometimes have propounded erroneous opinions, but there is a great difference between that and the invention of a whole story.
en.wikipedia.org