Breakdown of Sinun on käytettävä laitetta varovasti, koska turvallisuus on todella tärkeää.
olla
to be
sinä
you
koska
because
varovasti
carefully
tärkeä
important
käyttää
to use
laite
device / ride (amusement park attraction)
todella
really (very, intensifier)
turvallisuus
the safety
Questions & Answers about Sinun on käytettävä laitetta varovasti, koska turvallisuus on todella tärkeää.
Why is the subject sinun in the genitive instead of the nominative sinä?
This sentence uses the Finnish obligation structure. To say that someone must do something, you put the person who has to act into the genitive case (sinun), use the 3rd-person singular verb on, and then use the passive present participle of the action verb (käytettävä).
In obligation sentences, the object is usually in the nominative case. Why is laitetta in the partitive here?
You are right that the object of an obligation structure usually drops standard object endings and looks like the nominative. However, the verb käyttää (to use) is a partitive verb. It always requires its object to be in the partitive case (laitetta), and this specific verb rule overrides the general obligation sentence rules.
How is the form käytettävä built from the dictionary verb käyttää?
It is formed by using the passive stem of the verb and adding the -ttävä or -tava ending. For käyttää (a type 1 verb), you take the passive stem käytettä- and add -vä. The ending uses the front vowel (ä) instead of (a) because of vowel harmony rules.
Why is the adjective tärkeää in the partitive case at the end of the sentence?
In Finnish, when a describing adjective follows the verb olla and refers to an abstract concept or an uncountable noun, the adjective must be in the partitive case. Since turvallisuus (safety) is an abstract concept, the adjective tärkeä becomes tärkeää.
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