Hun er interessert i kunst.

• Hun = she
• er = is (present tense of å være, to be)
• interessert = interested
• i = in
• kunst = art

So the structure is very close to English: She is interested in art.

Because Norwegian uses the fixed expression å være interessert i noe, which means to be interested in something.

So you say:

• Hun er interessert i kunst
• Jeg er interessert i musikk
• Er du interessert i historie?

A native English speaker may want to try another preposition, but with interessert, i is the normal one.

Because kunst here means art in general, not one specific piece of art.

Just like English says interested in art, Norwegian says interessert i kunst without en/ei/et.

Compare:

• Hun er interessert i kunst = she is interested in art, generally
• Hun er interessert i kunsten til Munch = she is interested in Munch’s art / the art of Munch

So no article is needed when talking about the subject or field in a general sense.

No. In this sentence, interessert is functioning as an adjective.

The verb is er.

So the pattern is:

• Hun er interessert = She is interested

This is similar to English, where interested looks like a past participle but works like an adjective in she is interested.

There is also a verb å interessere (to interest), but it is used differently:

• Kunst interesserer henne = Art interests her

You would not normally say Hun interesserer i kunst.

This is the normal word order for a simple statement in Norwegian:

subject + verb + rest

So:

• Hun = subject
• er = verb
• interessert i kunst = complement

It matches English very closely here, which makes this sentence fairly easy for English speakers.

In this sentence, interessert stays as interessert because it is describing one person: hun.

Examples:

• Han er interessert i kunst = He is interested in art
• Hun er interessert i kunst = She is interested in art
• Barnet er interessert i kunst = The child is interested in art

In the plural, you will often see interesserte:

• De er interesserte i kunst = They are interested in art

So yes, it can change, but in this sentence the basic form interessert is correct.

To make it negative, add ikke after the verb:

• Hun er ikke interessert i kunst = She is not interested in art

To make it a yes/no question, put the verb first:

• Er hun interessert i kunst? = Is she interested in art?

That verb-first pattern is very common in Norwegian questions.

This sentence is Bokmål.

The clue is hun, which is the standard Bokmål form for she.

In Nynorsk, you would more often see:

• Ho er interessert i kunst

The rest of the sentence is very similar, but hun/ho is an easy way to notice the difference.

A rough pronunciation guide is:

Hun er interessert i kunst
hün ehr in-te-re-SERT ee künst

A few notes:

• Hun has a vowel that does not match standard English exactly. It is closer to the u sound in German über or French tu.
• interessert has the main stress on the last part: -sert
• i is a long ee sound
• kunst also has that rounded vowel that English does not really have

Pronunciation varies by region, so exact sounds will differ a bit depending on dialect.

Yes, kunst can refer broadly to art as a field or concept, which is what it means here.

But if you want to talk about a specific work of art, Norwegian often uses a more specific noun such as:

• et kunstverk = a work of art

So in this sentence, kunst means art in general, not one particular painting or sculpture.