| Singular | Plural | |
|---|---|---|
| Nominativ | mons, bellomons | montes |
| Genitiv | montis, admontis, montisferrati | montium, matrimontium, montum, septimontium, suismontium |
| Dativ | monte, monti, admonti, montesve, montibua, monticulo, monticulus, montifer, bellomonte, commonti | montibus |
| Akkusativ | montem, montim | montes, montis, admontis, monteis, montisferrati |
| Ablativ | monte, monti, admonti, montesve, montibua, monticulo, monticulus, montifer, bellomonte, commonti | montibus |
| Vokativ | mons, bellomons | montes |
12 (51) Formen für „mons“