| Singular | Plural | |
|---|---|---|
| Nominativ | attagus, attacus | attagi, attaci |
| Genitiv | attagi, attaci | attagorum, attacorum, attagum, attacum |
| Dativ | attago, attaco | attagis, attacis |
| Akkusativ | attagom, attacom, attagum, attacum | attagos, attacos |
| Ablativ | attago, attaco | attagis, attacis |
| Vokativ | adtace, attage, attace | attagi, attaci |