| Singular | Plural | |
|---|---|---|
| Nominativ | congressor, congressor | congressores, congressores |
| Genitiv | congressoris, congressoris | congressorium, congressorum, congressorium, congressorum |
| Dativ | congressori, congressori, congressore | congressoribus, congressoribus |
| Akkusativ | congressorem, congressorem | congressores, congressores, congressoris, congressoris |
| Ablativ | congressore, congressore | congressoribus, congressoribus |
| Vokativ | congressor, congressor | congressores, congressores |
| Singular | Plural | |
|---|---|---|
| Nominativ | — | — |
| Genitiv | — | — |
| Dativ | — | congressoreis, congressoreis |
| Akkusativ | — | — |
| Ablativ | — | congressoreis, congressoreis |
| Vokativ | — | — |
| Singular | Plural | |
|---|---|---|
| Nominativ | — | — |
| Genitiv | — | — |
| Dativ | — | — |
| Akkusativ | — | — |
| Ablativ | — | — |
| Vokativ | — | — |
| Singular | Plural | |
|---|---|---|
| Nominativ | — | — |
| Genitiv | — | — |
| Dativ | — | — |
| Akkusativ | — | — |
| Ablativ | — | — |
| Vokativ | — | — |