| Singular | Plural | |
|---|---|---|
| Nominativ | commers | commerces, commercis |
| Genitiv | commercis | commercium, commercum |
| Dativ | commerce, commerci | commercibus |
| Akkusativ | commercem, commercim | commerceis, commerces, commercis |
| Ablativ | commerce, commerci | commercibus |
| Vokativ | commers | commerces |
12 (19) Formen für „commers“