Breakdown of Hän on hyvin kiinnostunut musiikista.
hän
he / she
musiikki
music
hyvin
very
olla kiinnostunut
to be interested in
Questions & Answers about Hän on hyvin kiinnostunut musiikista.
Why is musiikista in the elative case (-sta) if the sentence means interested 'in' music?
In Finnish, certain words require the noun connected to them to be in a specific case. The word kiinnostunut (interested) always requires the elative case (-sta or -stä). So, instead of being interested 'in' something, a Finnish speaker is literally interested 'from' it.
Doesn't hyvin usually mean 'well'?
Yes, hyvin is the adverb form of hyvä (good) and normally means 'well'. However, it is also very commonly used as an intensifier to mean 'very', functioning exactly like tosi or erittäin.
What kind of word is kiinnostunut?
It acts as an adjective here, but it is actually formed from the verb kiinnostua (to get interested). The -nut ending shows it is a past participle, meaning it describes someone who has already 'become interested' in something.
How would this sentence change if we used 'they' (he) instead of 'he' (hän)?
The sentence would become: He ovat hyvin kiinnostuneita musiikista. The verb changes to ovat (are), and kiinnostunut changes to its plural partitive form, kiinnostuneita.