I köpeavtalet står inte bara priset utan också registreringsnumret.

Yes, står literally means stands, but in Swedish it is also very commonly used about written information.

So Det står i avtalet means It says in the contract or It is written in the contract.

This is a very normal Swedish pattern:

• Det står i tidningen = It says in the newspaper
• Vad står det på skylten? = What does the sign say?
• I mejlet står det att ... = In the email it says that ...

So in this sentence, står does not mean that the price is physically standing somewhere. It means that the information is stated in the contract.

This is because Swedish follows the V2 rule in main clauses: the finite verb usually comes in the second position.

Here, I köpeavtalet has been placed first. Once that happens, the verb står must come next.

So the structure is:

• I köpeavtalet = first element
• står = finite verb in second position
• inte bara priset utan också registreringsnumret = subject

In English, you would usually keep the subject before the verb, but Swedish is much freer about what can come first, as long as the verb stays in second position.

Compare:

• Priset står i köpeavtalet.
• I köpeavtalet står priset.

Both are possible, but the second one follows the V2 pattern after fronting I köpeavtalet.

The subject is the whole coordinated phrase:

inte bara priset utan också registreringsnumret

So the sentence is saying that not only the price but also the registration number is stated in the contract.

It may feel unusual because the subject comes after the verb, but that is normal in Swedish when something else has been moved to the front.

Swedish usually uses i when talking about information contained in a text, document, contract, book, email, and so on.

So:

• i avtalet = in the contract
• i boken = in the book
• i mejlet = in the email

På is more often used for a surface or sometimes for something physically located on a page, sign, or screen.

So in this sentence, i köpeavtalet is the natural choice because the meaning is that the information appears as content inside the contract.

Köpeavtalet is the definite singular form of köpeavtal.

Breakdown:

• köpeavtal = purchase agreement / sales contract
• köpeavtalet = the purchase agreement / the sales contract

The ending -et is the definite article for many ett-words in Swedish.

So:

• ett avtal = a contract
• avtalet = the contract

And with the full compound:

• ett köpeavtal
• köpeavtalet

Swedish often builds long nouns by combining smaller nouns into compounds, and this is one of them.

This is the standard Swedish way to say not only ... but also ...

So:

• inte bara X utan också Y = not only X but also Y

In your sentence:

• inte bara priset = not only the price
• utan också registreringsnumret = but also the registration number

This pattern is very common, and the two parts should normally be parallel. Here, both priset and registreringsnumret are noun phrases, so the structure is nicely balanced.

Examples:

• Hon talar inte bara svenska utan också engelska.
• Vi köpte inte bara bröd utan också mjölk.

After inte bara, the normal and most idiomatic continuation is utan också.

So the standard pair is:

inte bara ... utan också ...

You may also sometimes see utan även, which is slightly more formal:

• inte bara X utan även Y

Using men också here would sound less standard in Swedish. For learners, the safest choice is definitely inte bara ... utan också ...

They are definite because the sentence refers to specific, identifiable things connected with this particular contract:

• the price
• the registration number

In Swedish, when the listener can identify exactly which thing is meant from the context, the definite form is often used.

So:

• priset = the price
• registreringsnumret = the registration number

If you used the indefinite forms pris or registreringsnummer here, it would sound less natural because the sentence is not talking about any price or any registration number in general. It means the specific ones listed in that contract.

Registreringsnumret is the definite singular form of registreringsnummer.

Breakdown:

• registrering = registration
• nummer = number
• registreringsnummer = registration number
• registreringsnumret = the registration number

The -s- in the middle is very common in Swedish compounds. It links the parts together:

• registrering + s + nummer

Depending on context, this can refer to a vehicle registration number, often what English speakers call a license plate number.

This is a very common point of confusion.

The noun is:

• ett nummer = a number

Its definite form is:

• numret = the number

Not nummeret.

This happens because some neuter nouns ending in -er shorten in the definite form. So the extra vowel disappears.

A few common examples:

• ett nummer → numret
• ett papper → pappret
• ett äpple → äpplet

So registreringsnumret is perfectly regular once you know this pattern:

• registreringsnummer
• registreringsnumret

No extra verb is needed.

The single verb står applies to both parts of the subject:

• priset
• registreringsnumret

So the meaning is:

• the price stands in the contract
• the registration number stands in the contract

But instead of repeating the verb, Swedish joins them into one coordinated subject: inte bara priset utan också registreringsnumret

This is completely normal and efficient.

Yes. A very natural alternative would be:

I köpeavtalet står både priset och registreringsnumret.

That means Both the price and the registration number are stated in the contract.

The difference is mainly emphasis:

• inte bara ... utan också ... emphasizes that one extra thing is included in addition to what you might expect
• både ... och ... simply states that both things are there

So your original sentence has a stronger sense of not just one thing, but this other thing too.