| Singular Nominative | filleadh |
| Singular Genitive | fillte; fillidh |
| Plural Nominative | fillteacha |
| Plural Genitive | fillteacha |
| Singular Nominative | an filleadh |
| Singular Genitive | an fhillte; an fhillidh |
| Plural Nominative | na fillteacha |
| Plural Genitive | na bhfillteacha |