| Singular Nominative | seóthriail |
| Singular Genitive | seóthrialach |
| Plural Nominative | seóthrialacha |
| Plural Genitive | seóthrialacha |
| Singular Nominative | an tseóthriail |
| Singular Genitive | na seóthrialach |
| Plural Nominative | na seóthrialacha |
| Plural Genitive | na seóthrialacha |