Den formstøpte delen passer.

Yes, in a way they do. This is a very common Norwegian pattern called double definiteness.

When a noun is definite and has an adjective in front of it, Norwegian usually uses:

den/det/de + adjective + noun in definite form

So:

• delen = the part
• den formstøpte delen = the molded part

You cannot normally just say formstøpte delen in standard Bokmål. The den is needed because the adjective comes before the definite noun.

Compare:

• delen = the part
• den store delen = the big part

Because del is a common gender noun in Norwegian.

Norwegian articles agree with the noun’s gender:

• en del = a part
• delen = the part
• den formstøpte delen = the molded part

If the noun were neuter, you would use det instead:

• et hus = a house
• det store huset = the big house

So den tells you the noun is not neuter here.

That -en is the usual definite ending for many common-gender nouns in Bokmål.

Here is the pattern:

• en del = a part
• delen = the part

So the noun itself carries definiteness. That is why the sentence does not use a separate word exactly like English the in the same way.

Because it is modifying a definite noun phrase: den ... delen.

In Bokmål, adjectives usually take -e when they come before a definite noun:

• en stor del = a large part
• den store delen = the large part

The same happens here:

• formstøpt del = molded part
• den formstøpte delen = the molded part

So the -e is not random; it matches the fact that the noun phrase is definite.

It functions like an adjective here, but it comes from a verb.

It is a past participle used adjectivally. The base verb is formstøpe, which is related to molding/casting in a form or mold.

So:

• å formstøpe = to mold / to cast in a mold
• formstøpt = molded / cast

In the sentence, it behaves like an adjective:

• den formstøpte delen = the molded part

This is very common in Norwegian, just as in English:

• a broken chair
• the painted wall
• the molded part

Here it is best understood as part of the structure meaning the.

Even though den can also mean that in some contexts, in this sentence it is mainly there because Norwegian requires den/det/de before an adjective + definite noun.

So:

• den formstøpte delen usually means the molded part
• In another context, den can be demonstrative, more like that, but that is not the most useful way to understand it here.

For a learner, the safest interpretation is: den + adjective + definite noun = the ...

Here passer means fits.

So the idea is that the part fits physically or is the right size/shape for where it is supposed to go.

The verb å passe can have several meanings depending on context, for example:

• skoene passer = the shoes fit
• det passer bra = that suits / that works well
• hun passer barnet = she looks after the child

In this sentence, the most natural meaning is the physical one: the molded part fits.

Because Norwegian verbs do not change by person the way English verbs sometimes do.

In English:

• I fit
• it fits

In Norwegian, the present tense is the same for all subjects:

• jeg passer
• du passer
• den passer

So passer is simply the present tense of å passe.

In standard Bokmål, that would usually sound incomplete or wrong.

Because the noun phrase is definite and has an adjective before the noun, Norwegian normally wants:

den formstøpte delen

not just:

formstøpte delen

This is exactly the double definiteness pattern again.

So the natural full sentence is:

Den formstøpte delen passer.

Usually, no—not in normal modern Bokmål.

den formstøpte delen is the standard everyday form.

You may sometimes see forms like den formstøpte del in older, more formal, or more Danish-influenced language, but that is not the usual modern pattern learners should copy.

So the safe rule is:

• normal modern Bokmål: den formstøpte delen

The word order is straightforward:

• Den formstøpte delen = subject
• passer = verb

So the structure is:

Subject + verb

That is the normal pattern in a simple statement.

More literally:

• Den formstøpte delen = the molded part
• passer = fits

A natural indefinite version would be:

En formstøpt del passer.

That means A molded part fits or One molded part fits, depending on context.

Compare the two:

• en formstøpt del = a molded part
• den formstøpte delen = the molded part

Notice the differences:

1. en becomes den
2. formstøpt becomes formstøpte
3. del becomes delen

Those three changes together mark the phrase as definite.

It looks difficult because it combines several consonants and contains the vowel ø, which English speakers often find unfamiliar.

A rough breakdown is:

• form
  • støp
    • te

A very rough English-style guide would be something like:

• FORM-sturp-teh

But that is only approximate. The most important things are:

• ø is not the same as English o
• støp has a rounded front vowel
• the final -e in formstøpte is usually clearly present

If you are practicing pronunciation, it may help to say it slowly first:

form-støp-te

then put it back into the full phrase:

den formstøpte delen