| Nominativ | investigabilis, investigabile, investigabilis, investigabile | investigabilia, investigabiles, investigabiles, investigabilia |
| Genitiv | investigabilis, investigabilis | investigabilium, investigabilum, investigabilium, investigabilum |
| Dativ | investigabili, investigabili | investigabilibus, investigabilibus |
| Akkusativ | investigabile, investigabilem, investigabile, investigabilem | investigabilia, investigabilis, investigabilis, investigabiles, investigabiles, investigabilia |
| Ablativ | investigabili, investigabile, investigabile, investigabili | investigabilibus, investigabilibus |
| Vokativ | investigabilis, investigabile, investigabilis, investigabile | investigabilia, investigabiles, investigabiles, investigabilia |
