rakennettuun

Rakennettuun is a Finnish illative singular form of the past participle rakennetettu (built, constructed). As a participial adjective, rakennettu refers to something that has been built, and the illative form rakennetuun indicates movement toward or into that built object. In practice, rakennetuun is used with a noun in the illative case to express “into the built …” or “to the built …” such as taloon (into the house) or rakennukseen (into the building).

Usage and examples:

- Muutimme rakennettuun taloon. (We moved into the built house.)

- Rakennetuun taloon on asennettu uusi hissi. (A new elevator has been installed in the built house.)

- Hän suunnittelee muuttoa rakennettuun rakennukseen. (She plans to move into the built building.)

Formation and grammatical role:

- Rakennettu is the base meaning “built.” The illative form rakennetuun is formed to show direction toward a constructed object. This form is one of several illative variants for adjectives and participles, chosen to align with the noun in illative (such as taloon, rakennukseen, asuntoon, etc.).

- It is distinct from rakennetussa, which signals location inside or within the built object (the inessive/locative case): “rakennetussa talossa” means inside the built house.

Relation to broader Finnish grammar:

- Rakennettu comes from the verb rakentaa (to build) and can function as an attributive adjective, with different case endings to convey movement toward, location in, or other relations to a noun.

- The illative form, including rakennetuun, is part of Finnish case systems that mark direction or destination, complementing nominative meanings of participles.

In summary, rakennetuun is the illative singular form of the built/constructed participle, used to express movement into something that has already been built.