Osoittautui

Osoittautui is a Finnish verb meaning to turn out to be or to prove to be. It is used to describe the outcome of a situation or theResult of an assessment, indicating that something has been revealed as true, correct, or in a particular state.

In usage, osoittautua typically takes complements in the translative case for the resulting state or attribute, such as hyvaksi, oikeaksi, ystävälliseksi, or as a noun. Examples include Se osoittautui oikeaksi valinnaksi (It turned out to be the right choice) and Hän osoittautui ystävälliseksi (He proved to be friendly). The verb can also introduce a clause with että to report what was found, for example Osoittui, että suunnitelma oli epärealistinen (It turned out that the plan was unrealistic).

Grammatically, osoittautua is an intransitive verb that forms its forms according to standard Finnish conjugation. The past tense singular is osoittui, the present is osoittuu, and the perfect form is on osoittautunut. The participial forms include osoittautunut (past passive participle) and osoittautuminen (the act of turning out/proving). The construction is flexible in continuous and narrative writing, and it is common in both everyday speech and formal prose.

Etymologically, the verb appears to be built from the root related to showing or indicating, with a suffix that marks a change of state or realization. It is related conceptually to verbs like osoittaa (to show) and situates events as discovered rather than assumed.

See also: osoittaa, osoittaminen.