Frivilligvakten er dels morsom, dels vanskelig.

It is a paired expression meaning partly ... partly ... or in some ways ... in some ways ....

So dels morsom, dels vanskelig means the volunteer duty is:

• fun in some respects
• difficult in other respects

This is slightly different from just saying and. It suggests a mixed or two-sided experience.

Because Norwegian usually writes compound nouns as one word.

Here you have:

• frivillig = volunteer / voluntary
• vakt = watch, shift, duty, guard duty, depending on context

Together they form the compound noun frivilligvakt, and in the sentence it appears in the definite form frivilligvakten.

This is very common in Norwegian. Where English often uses two words, Norwegian often prefers one compound word.

The ending -en marks the noun as definite singular.

So:

• frivilligvakt = a volunteer shift / a volunteer duty
• frivilligvakten = the volunteer shift / the volunteer duty

In Norwegian compounds, the definite ending is added to the last part of the compound, not the first part.

Inside frivilligvakt, it functions as the first part of a compound noun.

So even though frivillig can be an adjective on its own, here it behaves more like the English first element in volunteer shift or volunteer duty.

That is why it does not change form here.

Compare:

• en frivillig vakt = a voluntary shift / a volunteer guard
• frivilligvakt = volunteer shift / volunteer duty as a compound noun

Those are related, but not exactly the same structure.

Because they are predicative adjectives: they come after er and describe the subject.

In Norwegian, predicative adjectives agree mainly with gender and number, not with definiteness.

Here the subject is a singular common-gender noun, so the basic form is used:

• Frivilligvakten er morsom
• Frivilligvakten er vanskelig

Compare:

• en morsom jobb = a fun job
• jobben er morsom = the job is fun

But with a neuter noun:

• et morsomt arbeid
• arbeidet er morsomt

So the lack of -t here is because vakt is not neuter.

Because Norwegian often shows definiteness by adding an ending to the noun itself.

So:

• vakten already means the shift / the watch / the duty
• therefore you do not need den here

A separate definite word like den is commonly used when there is an adjective before the noun:

• den frivillige vakten

But in frivilligvakten, the noun is a single compound with the definite ending already attached.

Yes, that would be grammatical.

But the nuance is a little different:

• både ... og ... = both ... and ...
• dels ... dels ... = partly ... partly ..., on the one hand ... on the other hand ...

So både morsom og vanskelig sounds more like it simply has both qualities.

Dels morsom, dels vanskelig sounds more like the experience is mixed, or fun in some ways and difficult in others.

Because dels ... dels ... often works as a paired structure, and the comma helps separate the two parts clearly.

So:

• dels morsom, dels vanskelig

This punctuation is natural and standard in this kind of sentence.

It is especially helpful when the two parts are being balanced against each other.

No. Norwegian does not capitalize all nouns.

It is capitalized here only because it is the first word of the sentence.

In the middle of a sentence, it would normally be:

• frivilligvakten

This is different from German, where all nouns are capitalized.

Vakt is a flexible noun in Norwegian. Depending on context, it can refer to:

• a guard
• a watch
• a shift
• a duty period

In a compound like frivilligvakt, it often refers to the duty/shift rather than the person, but the exact meaning depends on the situation.

So the grammar stays the same, even if the most natural English translation changes with context.

It follows normal Norwegian main-clause word order:

• Frivilligvakten = subject
• er = verb
• dels morsom, dels vanskelig = subject complement

So the pattern is simply:

subject + verb + description

This is very similar to English:

• The volunteer duty is partly fun, partly difficult.

Nothing unusual is happening with word order in this sentence.