Assistenten hjelper kunden.

Because -en is the usual definite ending for many masculine and common-gender nouns in Norwegian. It works like English the attached to the end of the noun.

• en assistent = an assistant

• assistenten = the assistant

• en kunde = a customer
• kunden = the customer

So instead of using a separate word like English the, Norwegian often adds the definite ending directly to the noun.

In Norwegian, the definite form is usually built into the noun itself.

So:

• the assistant → assistenten
• the customer → kunden

That means Assistenten hjelper kunden literally looks like Assistant-the helps customer-the, but in natural English it means The assistant helps the customer.

Hjelper is the present tense of å hjelpe (to help).

• å hjelpe = to help
• hjelper = help(s) / is helping, depending on context

Norwegian verbs are simpler than English in one important way: the verb usually does not change depending on the subject.

For example:

• Jeg hjelper = I help / am helping
• Du hjelper = You help / are helping
• Assistenten hjelper = The assistant helps / is helping

So hjelper stays the same.

You know mainly from word order.

Norwegian usually follows subject – verb – object in simple statements:

• Assistenten = subject
• hjelper = verb
• kunden = object

So Assistenten hjelper kunden means The assistant helps the customer.

If you switch the nouns, the meaning changes:

• Kunden hjelper assistenten = The customer helps the assistant

Unlike some languages, Norwegian does not usually mark this with special endings on the noun here. Word order does most of the work.

Yes, in this basic statement it is the same:

• Assistenten = The assistant
• hjelper = helps
• kunden = the customer

So the structure is:

Subject + Verb + Object

That said, Norwegian has an important rule called V2 word order, which means the verb is often in the second position in main clauses. In this simple sentence, that gives the same order as English.

A rough English-friendly guide would be:

• Assistenten ≈ ah-sis-TEN-ten
• hjelper ≈ YEL-per or HYEL-per depending on accent and speaker
• kunden ≈ KOON-den

A few useful notes:

• The j in hjelper sounds like English y.
• The u in kunden is not exactly like English oo, but oo is a decent first approximation.
• The stress is usually:
  • assisTENten
  • HJELper
  • KUNden

If you want to sound more natural, listen to native audio, because Norwegian vowels can be tricky for English speakers.

They take en, which means they are usually treated as common gender nouns in Bokmål.

In modern Bokmål, nouns are often grouped like this:

• en words = common gender
• et words = neuter

So:

• en assistent
• en kunde

In many grammar explanations, you may see en nouns casually called masculine, especially in older or simplified teaching materials. But in everyday Bokmål, it is usually more helpful to think of them as common gender nouns.

Yes. That would mean The assistant helps a customer.

Compare:

• Assistenten hjelper kunden = The assistant helps the customer
• Assistenten hjelper en kunde = The assistant helps a customer

So the difference is the same as English the vs a/an.

No, not in the present tense.

English changes the verb in the third person singular:

• I help
• you help
• he/she helps

Norwegian does not do that:

• jeg hjelper
• du hjelper
• han/hun hjelper
• assistenten hjelper

So once you learn the present-tense form hjelper, you can use it with all subjects.

Norwegian capitalization is much like English in this kind of sentence:

• The first word of the sentence is capitalized: Assistenten
• Common nouns like kunde and assistent are not capitalized unless they begin the sentence
• Verbs like hjelper are not capitalized

So this is correct:

• Assistenten hjelper kunden.

Not:

• Assistenten Hjelper Kunden.

The dictionary forms are:

• assistent = assistant
• kunde = customer
• å hjelpe = to help

In the sentence, they appear in these forms:

• assistenten = definite singular form of assistent
• hjelper = present tense of å hjelpe
• kunden = definite singular form of kunde

So when looking words up, you would usually search for assistent, kunde, and hjelpe.