| I | undermine |
|---|---|
| you | undermine |
| he/she/it | undermines |
| we | undermine |
| you | undermine |
| they | undermine |
| I | undermined |
|---|---|
| you | undermined |
| he/she/it | undermined |
| we | undermined |
| you | undermined |
| they | undermined |
| I | have | undermined |
|---|---|---|
| you | have | undermined |
| he/she/it | has | undermined |
| we | have | undermined |
| you | have | undermined |
| they | have | undermined |
| I | had | undermined |
|---|---|---|
| you | had | undermined |
| he/she/it | had | undermined |
| we | had | undermined |
| you | had | undermined |
| they | had | undermined |
单语范例（未经PONS编辑处理）
Urbanisation and the aggregation of people into an abstract and bureaucratic state undermines this empathy.
en.wikipedia.org It was believed operations of this sort would undermine or completely destroy the ability for the front-line troops to continue battle.
en.wikipedia.org Other conflicts, however, can undermine the manufacturer's business model.
en.wikipedia.org This construction violates previous agreements and undermines efforts to achieve peace.
en.wikipedia.org Police suspected that the investigators were trying to obtain new evidence to undermine their credibility.
en.wikipedia.org