Male form
- Nominative
- Seán Mac an Fhailí
- Genitive
- Sheáin Mhic an Fhailí
- Vocative
- a Sheáin Mhic an Fhailí
Wife form
- Nominative
- Síle Mhic an Fhailí
- Genitive
- Shíle Mhic an Fhailí
- Vocative
- a Shíle Mhic an Fhailí
Daughter form
- Nominative
- Síle Nic an Fhailí
- Genitive
- Shíle Nic an Fhailí
- Vocative
- a Shíle Nic an Fhailí
Male form
- Nominative
- Seán Mac an Fhailghigh
- Genitive
- Sheáin Mhic an Fhailghigh
- Vocative
- a Sheáin Mhic an Fhailghigh
Wife form
- Nominative
- Síle Mhic an Fhailghigh
- Genitive
- Shíle Mhic an Fhailghigh
- Vocative
- a Shíle Mhic an Fhailghigh
Daughter form
- Nominative
- Síle Nic an Fhailghigh
- Genitive
- Shíle Nic an Fhailghigh
- Vocative
- a Shíle Nic an Fhailghigh