| Sg | Pl | |
| 1st | brest (rule) | brestum (rule) |
| 2nd | brestr (rule) | brestið (rule) |
| 3rd | brestr (rule) | bresta (rule) |
| Sg | Pl | |
| 1st | brast (rule) | brustum (rule) |
| 2nd | braszt (rule) | brustuð (rule) |
| 3rd | brast (rule) | brustu (rule) |
| Sg | Pl | |
| 1st | brestumk (rule) | brestumk (rule) |
| 2nd | brestsk (rule) | brestizk (rule) |
| 3rd | brestsk (rule) | brestask (rule) |
| Sg | Pl | |
| 1st | ? (rule) | brustumsk (rule) |
| 2nd | ? (rule) | brustuzk (rule) |
| 3rd | brastsk (rule) | brustusk (rule) |
| Sg | Pl | |
| 1 | bresta (rule) | brestim (rule) |
| 2 | brestir (rule) | brestið (rule) |
| 3 | bresti (rule) | bresti (rule) |
| Sg | Pl | |
| 1 | brysta (rule) | brystim (rule) |
| 2 | brystir (rule) | brystið (rule) |
| 3 | brysti (rule) | brysti (rule) |
| Form | |
| Participle | brestandi (rule) |
| Past participle | brostinn (rule) |
| Middle infinitive | brestask (rule) |
| Sg | |
| 2nd | brest (rule) |