| Part of speech | unknown part of speech |
|---|
| Singular | Plural | |
|---|---|---|
| Nominative | forumo | forumoj |
| Accusative | forumon | forumojn |
| Catalan | fòrum |
|---|---|
| Czech | fórum |
| Dutch | forum |
| English | forum |
| French | forum |
| German | Forum; Tribunal |
| Portuguese | foro; fórum |
| Saterland Frisian | Forum |
| Spanish | foro |