The Comitative Case (-ine-)
The comitative case expresses that something comes "together with" or is "equipped with" something else. It uses the plural stem followed by the suffix -ine-.
A noun in the comitative case must always take a possessive suffix (e.g., -en or -nsa, meaning "its" or "their").
Modifier Agreement
When an adjective modifies a comitative noun, the adjective also takes the -ine ending. However, the adjective does not take a possessive suffix.
Pattern: [Adjective + -ine] [Noun + -ine + Possessive Suffix]
For example, "with its new home appliances" (uusi + kodinkone):
- Adjective: uusi becomes uusine
- Noun: kodinkone becomes kodinkoneine
- -en -> kodinkoneineen
| The apartment, with its new home appliances, is really expensive. | Asunto uusine kodinkoneineen on todella kallis. |
Describing Rental Properties
This structure is highly common when describing property features. The possessive suffix usually refers back to the property itself.
| The tenant had rented the cabin with all its furniture. | Vuokralainen oli vuokrannut mökin kaikkine kalusteineen. |
| The spacious house with its large terraces is perfect for us. | Avara talo suurine terasseineen on täydellinen meille. |
Because the comitative is built on the plural stem, the suffix is always -ine-, regardless of whether the translation implies a singular or plural feature.
| We bought the apartment with its wonderful sea views. | Ostimme asunnon upeine merinäköaloineen. |
You can chain multiple comitative phrases to describe a fully equipped location:
| This housing company is luxurious with its new jacuzzis and beautiful sea views. | Tämä taloyhtiö on ylellinen uusine porealtaineen ja kauniine merinäköaloineen. |