todennettuihin

Todennettuihin is a Finnish grammatical form belonging to the illative plural of the past participle adjective todennettu, meaning “proven” or “verified.” In Finnish, illative forms express direction toward or into something or, in broader usage, serve as the object of a preposition or verb that governs the illative. Todennettuihin is therefore used to modify a noun in a phrase where the object or target is plural and illative-case marked.

In practice, todennettuihin appears in phrases such as todennettuihin tietoihin perustuva tutkimus (“a study based on verified data”) or todennettuihin todisteisiin viittaaminen (“referring to verified evidence”). The form is built from the stem todennettu (derived from todeta, “to state/confirm”) with the illative plural suffix -iin, producing todennettuihin. It is not used in isolation; it always accompanies a following noun in illative plural, forming a noun phrase.

Related forms include the singular illative todennettuun or other variants like todennetty (the participle in its basic form) and todentaminen/ todentaa in related derivations. The illative plural form todennettuihin is most common in formal, academic, or legal Finnish, where precise reference to the target of verification or basis is required. In everyday language, speakers may use simpler expressions, but todennettuihin remains a standard option for conveying that something is based on verified information or evidence.