| I | alter |
|---|---|
| you | alter |
| he/she/it | alters |
| we | alter |
| you | alter |
| they | alter |
| I | altered |
|---|---|
| you | altered |
| he/she/it | altered |
| we | altered |
| you | altered |
| they | altered |
| I | have | altered |
|---|---|---|
| you | have | altered |
| he/she/it | has | altered |
| we | have | altered |
| you | have | altered |
| they | have | altered |
| I | had | altered |
|---|---|---|
| you | had | altered |
| he/she/it | had | altered |
| we | had | altered |
| you | had | altered |
| they | had | altered |
单语范例（未经PONS编辑处理）
Certainly all the main inclines were in place, very little was altered until closure.
en.wikipedia.org The sensitivity of the reagent may become altered after the recommended time period.
en.wikipedia.org Other apologists have countered with claims that the dating was indeed altered for one or another reason and should be understood as fable, not history.
en.wikipedia.org Skilled improvisers are able to supply an idiomatic, highly altered harmonic vocabulary even when written chord symbols contain no alterations.
en.wikipedia.org Master tuning and modulation depth are not altered by the emulation.
en.wikipedia.org