genetiivisääntöisen

genetiivisääntöisen is a Finnish grammatical term referring to a noun or pronoun that is in the genitive case. The genitive case in Finnish typically indicates possession or belonging, similar to the English possessive 's. However, it also has a broader range of functions, including marking the object of certain verbs, expressing temporal relationships, and indicating the part of a whole. For example, in the phrase "kirjan kannet" (the book's covers), "kirjan" is in the genitive case.

The genitive case is formed by adding specific suffixes to the noun or pronoun stem. The exact suffix depends on the declension class of the word. For example, singular genitive endings often include -n or -en. The genitive case is a fundamental part of Finnish grammar and is essential for constructing grammatically correct sentences. Understanding its various uses is crucial for both native speakers and learners of the language.

Beyond simple possession, the genitive case can be used to express partitive relationships, as in "lasillinen vettä" (a glass of water), where "vettä" is in the partitive but a genitive form might be used in other contexts to indicate a portion. It also appears in various idiomatic expressions and set phrases. Mastery of the genitiivisääntöinen is therefore a key step in achieving fluency in Finnish.