Muodostuneissa

Muodostuneissa is the inessive plural form of the Finnish adjective or past participle muodostunut, derived from the verb muodostua, meaning to form or arise. It is used to describe something that has already formed and to indicate its state within a plural noun group.

The form is created from the plural nominative muodostuneet by adding the inessive plural suffix -issa/-issä, yielding muodostuneissa. It is primarily used with plural nouns in the inessive case to convey “in the formed [ones/components].” Examples: muodostuneissa sedimenttikerrostumissa (in the formed sediment layers), muotostuneissa kivilajeissa (in the formed rock types), muotostuneissa kudoksissa (in the formed tissues). The nuance is that the speaker emphasizes the state of something that has developed or formed, rather than something created by an agent.

Compared with muodostunut (singular) or muodostettu, muodostunut and its inessive plural muotoetuneissa signal different aspects: muotostunut refers to a formed state in general, while muodostettu stresses that formation was carried out by someone or something. Muodostuneita or muotostuneissa can thus appear in contexts where natural or historical formation processes are described.

Common contexts include geology, archaeology, biology, chemistry, and linguistics, where formations resulting from natural development or historical processes are discussed. The expression is more frequent in scientific Finnish than in everyday language, and it often accompanies nouns denoting structures, layers, or tissues. See also muodostunut, muodostus, muodostua.