| Singular | Plural | |
|---|---|---|
| Nominativ | congrua, congrua | congruae, congruae |
| Genitiv | congruai, congruai, congruae, congruae | congruarum, congruarum, congruum, congruum |
| Dativ | congruae, congruai, congruai, congruae | congruis, congruis, congruabus, congruabus |
| Akkusativ | congruam, congruam | congruas, congruas |
| Ablativ | congrua, congrua, congruad, congruad | congruis, congruis, congruabus, congruabus |
| Vokativ | congrua, congrua | congruae, congruae |