| Singular | Plural | |
|---|---|---|
| Nominativ | complexus, complexar | complexuus, complexus |
| Genitiv | complexus | complexuum |
| Dativ | complexui | complexibus, complexubus |
| Akkusativ | complexar, complexum | complexuus, complexus |
| Ablativ | complexu, complexuque | complexibus, complexubus |
| Vokativ | complexar, complexus | complexuus, complexus |