| Nominativ | puerignis, ignis, ignisque, ignis | ignes, ignes, ignesque |
| Genitiv | ignis, puerignis, ignis, ignisque | ignium, ignum, ignum, indignium, larignum, igninum, ignium |
| Dativ | igni, marsigni, igninum, igni, igniacus, igne | ignibus, ignibusque, ignibus |
| Akkusativ | ignem, ignemneque, ignim, ignemque, ignim, ignem | ignisque, ignis, ignes, ignes, ignesque, puerignis, ignis |
| Ablativ | igni, marsigni, igninum, igne, igni, igniacus, igne | ignibus, ignibusque, ignibus |
| Vokativ | ignis, puerignis, ignis, ignisque | ignes, ignes, ignesque |
