Male form
- Nominative
- Seán Mac Eoghain
- Genitive
- Sheáin Mhic Eoghain
- Vocative
- a Sheáin Mhic Eoghain
Wife form
- Nominative
- Síle Mhic Eoghain
- Genitive
- Shíle Mhic Eoghain
- Vocative
- a Shíle Mhic Eoghain
Daughter form
- Nominative
- Síle Nic Eoghain
- Genitive
- Shíle Nic Eoghain
- Vocative
- a Shíle Nic Eoghain
Male form
- Nominative
- Seán Mac Eoin
- Genitive
- Sheáin Mhic Eoin
- Vocative
- a Sheáin Mhic Eoin
Wife form
- Nominative
- Síle Mhic Eoin
- Genitive
- Shíle Mhic Eoin
- Vocative
- a Shíle Mhic Eoin
Daughter form
- Nominative
- Síle Nic Eoin
- Genitive
- Shíle Nic Eoin
- Vocative
- a Shíle Nic Eoin