| Nominativ | subsignanus, subsignana, subsignanus, subsignanum, subsignana, subsignanum | subsignani, subsignanae, subsignana, subsignani, subsignanae, subsignana |
| Genitiv | subsignani, subsignanae, subsignani, subsignani, subsignanae, subsignani | subsignanorum, subsignanorum, subsignanarum, subsignanorum, subsignanorum, subsignanarum |
| Dativ | subsignano, subsignano, subsignanae, subsignanae, subsignano, subsignano | subsignanis, subsignanis |
| Akkusativ | subsignanum, subsignanam, subsignanum, subsignanum, subsignanam, subsignanum | subsignana, subsignanos, subsignanas, subsignana, subsignanos, subsignanas |
| Ablativ | subsignano, subsignano, subsignana, subsignano, subsignana, subsignano | subsignanis, subsignanis |
| Vokativ | subsignane, subsignana, subsignanum, subsignane, subsignana, subsignanum | subsignani, subsignanae, subsignana, subsignani, subsignanae, subsignana |
