Vi må prise bruktvarene.

Because må is a modal verb. In Norwegian, modal verbs such as må, kan, skal, vil, and bør are normally followed by the bare infinitive of the main verb, without å.

So you get:

• Vi må prise bruktvarene.
• Jeg kan hjelpe.
• Hun vil dra.

Not:

• Vi må å prise ... ❌

This is similar to English, where we say must price and not must to price.

Again, this is because må is a modal verb. After a modal verb, the next verb stays in the infinitive form.

Compare:

• Vi priser bruktvarene. = present tense, we price / are pricing the used goods
• Vi må prise bruktvarene. = must
  • infinitive, we must price the used goods

So:

• priser = present tense
• prise = infinitive

Bruktvarene can be broken down like this:

• brukt = used, second-hand
• vare = item, product, goods
• -ne / -ene = the definite plural ending

The base noun is bruktvare or more commonly the plural idea bruktvarer.

So:

• bruktvarer = used goods / second-hand items
• bruktvarene = the used goods / the second-hand items

Because Norwegian usually writes compound nouns as one word.

English often writes these as two words:

• used goods
• car door
• school bus

Norwegian often combines them:

• bruktvarer
• bildør
• skolebuss

So bruktvarene is normal Norwegian spelling. Writing it as two words would usually look wrong.

The ending -ene marks definite plural for many nouns in Norwegian.

Compare:

• en vare = an item
• varen = the item
• varer = items
• varene = the items

With the compound:

• bruktvarer = used goods
• bruktvarene = the used goods

So the sentence is talking about specific used goods, not just used goods in general.

Often yes, but not always exactly. Må can cover both must and have to, depending on context.

Examples:

• Jeg må gå nå. = I must go now / I have to go now
• Vi må prise bruktvarene. = We must price the used goods / We have to price the used goods

In everyday English, have to is often more natural, while Norwegian uses må very comfortably in ordinary speech.

Yes, prise means to set a price on, to price, or to assign a price to something.

For example:

• Vi må prise varene. = We must price the goods.
• Butikken har priset alt på nytt. = The shop has repriced everything.

A learner might confuse it with English praise, but here it is about price, not admiration.

This is normal Norwegian main-clause word order:

• Vi = subject
• må = finite verb
• prise = infinitive main verb
• bruktvarene = object

So the pattern is:

subject + finite verb + infinitive + object

This is very natural after a modal verb in Norwegian.

Then you would usually use bruktvarer instead of bruktvarene.

Compare:

• Vi må prise bruktvarene. = We must price the used goods.
• Vi må prise bruktvarer. = We must price used goods.

The version with -ene sounds more definite and specific.

A simple learner-friendly approximation is:

• Vi ≈ vee
• må ≈ like moaw with a rounded vowel
• prise ≈ PREE-suh
• bruktvarene ≈ BROOKT-vah-ruh-nuh

A few helpful notes:

• i in vi is a long ee sound.
• å in må is a rounded back vowel that English does not match perfectly.
• prise has two syllables in Norwegian: pri-se.
• bruktvarene is stressed mainly near the start: BRUKT-...

The exact pronunciation varies a bit by accent, but this will get you close.