Bøying av det engelske verbet to concentre i alle sine former.
| Verbtid | Verbbøying (Uregelrett) |
|---|---|
| Infinitive: | to concentre |
| 3rd person singular: | concentres |
| Past simple: | concentred |
| Past participle: | concentred |
| Present participle: | concentring |
| Imperative: | concentre! |