Bøying av det engelske verbet to strengthen i alle sine former.
| Verbtid | Verbbøying (Uregelrett) |
|---|---|
| Infinitive: | to strengthen |
| 3rd person singular: | strengthens |
| Past simple: | strengthened |
| Past participle: | strengthened |
| Present participle: | strengthening |
| Imperative: | strengthen! |