| I | shorten |
|---|---|
| you | shorten |
| he/she/it | shortens |
| we | shorten |
| you | shorten |
| they | shorten |
| I | shortened |
|---|---|
| you | shortened |
| he/she/it | shortened |
| we | shortened |
| you | shortened |
| they | shortened |
| I | have | shortened |
|---|---|---|
| you | have | shortened |
| he/she/it | has | shortened |
| we | have | shortened |
| you | have | shortened |
| they | have | shortened |
| I | had | shortened |
|---|---|---|
| you | had | shortened |
| he/she/it | had | shortened |
| we | had | shortened |
| you | had | shortened |
| they | had | shortened |
单语范例（未经PONS编辑处理）
In 1855, it was first surveyed on the site just east of the river and carried the official present shortened spelling.
en.wikipedia.org Injuries shortened his major league career to only nine seasons.
en.wikipedia.org Wheel arrangement was now 2-2-2, shortening the wheelbase still further to 14 '10.
en.wikipedia.org This will shorten the life of the policy.
en.wikipedia.org One signal is released during the follicular phase of the estrous cycle and it shortens estrous cycles.
en.wikipedia.org