Bøying av det engelske verbet to underpin i alle sine former.
| Verbtid | Verbbøying (Uregelrett) |
|---|---|
| Infinitive: | to underpin |
| 3rd person singular: | underpins |
| Past simple: | underpinned |
| Past participle: | underpinned |
| Present participle: | underpinning |
| Imperative: | underpin! |