| Present | Preterite | |
|---|---|---|
| Indicative | ||
| 1st person | (ic) forswerie | (ic) forswōr |
| 2nd person | (þū) forswerest | (þū) forswōre |
| 3rd person | (hē/hēo/hit) forswereþ | (hē/hēo/hit) forswōr |
| Plural | (wē/gē/hīe) forsweriaþ | (wē/gē/hīe) forswōron |
| Subjunctive | ||
| Singular | forswerie | forswōre |
| Plural | forswerien | forswōren |
| Participles | ||
| Plural | forsweriende | forsworen |
| Imperative | ||
| Singular | forswere | - |
| Plural | forsweriaþ | - |
| Inflected Infinitive | ||
| forswerienne | ||