Editing Comitative case (section)

====Finnish====
In Finnish, the comitative case ({{lang|fi|komitatiivi}}) consists of the suffix {{lang|fi|-ne}} with adjectives and {{lang|fi|-ne-}} + a mandatory [[possessive suffix]] with the main noun. There is no singular-plural distinction; only the plural of the comitative exists and is used in both singular and plural senses, and thus it always appears as {{lang|fi|-ine-}}.  For instance, "with their big ships" is

{{interlinear|indent=3|lang=fi
|suuri-ne laivo-i-ne-en
|big-COM ship-OBL-PL-COM-POS.3PL
}}
while "with his/her big ships" is
{{interlinear|indent=3|lang=fi
|suuri-ne laivo-i-ne-nsa
|big-COM ship-OBL-PL-COM-POS.3SG
|}}

It is rarely used and is mainly a feature of formal literary language, appearing very rarely in everyday speech.

The much more common, less formal way of expressing "with" is with the postposition {{lang|fi|kanssa}}, e.g., {{lang|fi|suurten laivojensa kanssa}} {{gloss|with their big ships}}. The two forms may contrast, however, since the comitative always comes with the possessive suffix and thus can only be used when the agent has some sort of possession of the thing expressed by the main noun. For instance, {{lang|fi|Ulkoministeri jatkaa kollegoineen neuvotteluja sissien kanssa}}, {{gloss|The foreign minister, with [assistance from] his colleagues, is continuing the negotiations with the guerrillas}}, has {{lang|fi|kollegoineen}} {{gloss|with his colleagues}} contrasted with {{lang|fi|sissien kanssa}} {{gloss|with the guerrillas}}, the former "possessed", the latter not.

Colloquial Finnish also has the postposition {{lang|fi|kaa}}, derived from {{lang|fi|kanssa}} and cognate with the Estonian {{lang|et|-ga}}. With pronouns it is written as a suffix, {{lang|fi|-kaa}}. Compare also [[Ingrian language|Ingrian]] {{lang|izh|-nka/-nkä}}, e.g., {{lang|izh|talonka}} {{gloss|with a house}}.

{{interlinear|indent=3|lang=fi
|mun-kaa
|1SG.GEN-with
|'with me'}}

{{interlinear|indent=3|lang=fi
|mun kavereitten kaa
|1SG-GEN friend-GEN-PL with
|'with my friends'}}