Male form
- Nominative
- Seán Ó Coinn
- Genitive
- Sheáin Uí Choinn
- Vocative
- a Sheáin Uí Choinn
Wife form
- Nominative
- Síle Uí Choinn
- Genitive
- Shíle Uí Choinn
- Vocative
- a Shíle Uí Choinn
Daughter form
- Nominative
- Síle Ní Choinn
- Genitive
- Shíle Ní Choinn
- Vocative
- a Shíle Ní Choinn
Male form
- Nominative
- Seán Ó Coinne
- Genitive
- Sheáin Uí Choinne
- Vocative
- a Sheáin Uí Choinne
Wife form
- Nominative
- Síle Uí Choinne
- Genitive
- Shíle Uí Choinne
- Vocative
- a Shíle Uí Choinne
Daughter form
- Nominative
- Síle Ní Choinne
- Genitive
- Shíle Ní Choinne
- Vocative
- a Shíle Ní Choinne
Male form
- Nominative
- Seán Ó Cuinn
- Genitive
- Sheáin Uí Chuinn
- Vocative
- a Sheáin Uí Chuinn
Wife form
- Nominative
- Síle Uí Chuinn
- Genitive
- Shíle Uí Chuinn
- Vocative
- a Shíle Uí Chuinn
Daughter form
- Nominative
- Síle Ní Chuinn
- Genitive
- Shíle Ní Chuinn
- Vocative
- a Shíle Ní Chuinn