| Singular | Plural | |
|---|---|---|
| Nominativ | legumen, legumen | legumina, legumina |
| Genitiv | leguminis, leguminis | leguminium, leguminum, leguminium, leguminum |
| Dativ | legumini, legumine, legumini | leguminibus, leguminibus |
| Akkusativ | legumen, legumen | legumina, legumina |
| Ablativ | legumine, legumine | leguminibus, leguminibus |
| Vokativ | legumen, legumen | legumina, legumina |