| I | unclog |
|---|---|
| you | unclog |
| he/she/it | unclogs |
| we | unclog |
| you | unclog |
| they | unclog |
| I | unclogged |
|---|---|
| you | unclogged |
| he/she/it | unclogged |
| we | unclogged |
| you | unclogged |
| they | unclogged |
| I | have | unclogged |
|---|---|---|
| you | have | unclogged |
| he/she/it | has | unclogged |
| we | have | unclogged |
| you | have | unclogged |
| they | have | unclogged |
| I | had | unclogged |
|---|---|---|
| you | had | unclogged |
| he/she/it | had | unclogged |
| we | had | unclogged |
| you | had | unclogged |
| they | had | unclogged |
单语范例（未经PONS编辑处理）
He promised to unclog the pipes and restore water supply by 4:00 p.m.
www.mindanews.com The stents, meant to unclog arteries of the heart, have become a major source to make a fast buck for many hospitals in the capital.
www.thehindu.com City firefighters worked to unclog flooded storm drains behind a seven-foot-high, 1,000-foot-long temporary retaining wall reinforced by gravel and sandbags.
www.dailymail.co.uk These strips can help to unclog blackheads (or sebaceous filaments), but they don't tackle the problem at its core and prevent them from coming back.
www.huffingtonpost.ca Anyone, who can help unclog this bottleneck, held the key to a multi-billion dollar bounty.
en.wikipedia.org