| I | thumb |
|---|---|
| you | thumb |
| he/she/it | thumbs |
| we | thumb |
| you | thumb |
| they | thumb |
| I | thumbed |
|---|---|
| you | thumbed |
| he/she/it | thumbed |
| we | thumbed |
| you | thumbed |
| they | thumbed |
| I | have | thumbed |
|---|---|---|
| you | have | thumbed |
| he/she/it | has | thumbed |
| we | have | thumbed |
| you | have | thumbed |
| they | have | thumbed |
| I | had | thumbed |
|---|---|---|
| you | had | thumbed |
| he/she/it | had | thumbed |
| we | had | thumbed |
| you | had | thumbed |
| they | had | thumbed |
单语范例（未经PONS编辑处理）
The most commonly missed areas are the thumb, the wrist, the areas between the fingers, and under fingernails.
en.wikipedia.org The climbing and suspensory behaviour in orthograde apes, such as chimpanzees, has resulted in elongated hands while the thumb has remained short.
en.wikipedia.org The forefinger was pressed on the nail of the thumb to strengthen the pull without increasing the exertion.
en.wikipedia.org The thumb was saved, but it took two months for it to heal.
en.wikipedia.org This splint can also assist in function and help the fingers flex towards the thumb.
en.wikipedia.org