Bøying av det engelske verbet to headbutt i alle sine former.
| Verbtid | Verbbøying (Uregelrett) |
|---|---|
| Infinitive: | to headbutt |
| 3rd person singular: | headbutts |
| Past simple: | headbutted |
| Past participle: | headbutted |
| Present participle: | headbutting |
| Imperative: | headbutt! |