Jeg vælger det forudbetalte abonnement kun hvis taletiden er ubegrænset.

Vælger is the present tense of at vælge, meaning to choose.

A useful pattern:

• jeg vælger = I choose / I am choosing
• jeg valgte = I chose
• jeg har valgt = I have chosen

In Danish, the present tense often covers both English I choose and I am choosing, depending on context.

Because abonnement is a neuter noun in Danish.

Its article forms are:

• et abonnement = a subscription
• det abonnement = the subscription

So det here is not the pronoun it. It is the definite article that goes with a neuter noun.

Because when an adjective comes before a definite noun, Danish normally uses the -e form of the adjective.

So you get:

• et forudbetalt abonnement = a prepaid subscription
• det forudbetalte abonnement = the prepaid subscription

This is a very common pattern:

• et rødt hus = a red house
• det røde hus = the red house

Because in Danish, when you use a definite article like den/det/de with an adjective before the noun, the noun itself usually stays in its basic singular/plural form, not the suffixed definite form.

So:

• abonnementet = the subscription
• det forudbetalte abonnement = the prepaid subscription

This is the normal pattern:

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

So Danish does not normally say det forudbetalte abonnementet.

It comes from the idea of paying in advance.

Related parts:

• forud = in advance / beforehand
• betalt = paid

So forudbetalt literally means paid in advance, and in this context it is best understood as prepaid.

Kun hvis means only if.

It introduces a condition and makes it restrictive. The speaker is saying that choosing the prepaid subscription depends on one condition: the talk time must be unlimited.

So the meaning is not just a general if, but a stronger only if.

Usually no, because hvis kun means something quite different.

• kun hvis = only if
• hvis kun = if only

Hvis kun is used for wishes or regrets, like if only that were true.

So in this sentence, kun hvis is the correct choice.

Because hvis introduces a subordinate clause, and subordinate clauses in Danish normally keep subject + verb order.

So:

• taletiden er ubegrænset

This is different from main-clause word order, where Danish often follows the verb-second rule.

A helpful comparison:

• Main clause: Taletiden er ubegrænset.
• After hvis: hvis taletiden er ubegrænset

So the order here is completely normal.

Taletiden is the definite form of taletid.

• taletid = talk time / airtime / calling time
• taletiden = the talk time

The ending -en shows that it is definite. This noun is a common-gender en-word, so its definite singular form ends in -en.

In mobile-phone contexts, taletid often refers to the amount of time you can spend on calls.

Ubegrænset means unlimited.

Here it is used after er, so it is a predicative adjective:

• taletiden er ubegrænset = the talk time is unlimited

Also, ubegrænset already ends in -t, so you do not add another -t.

Compare:

• ubegrænset taletid = unlimited talk time
• taletiden er ubegrænset = the talk time is unlimited
• ubegrænsede minutter = unlimited minutes

So the form in the sentence is the normal one.

Yes, but it can change the meaning.

Current sentence:

• Jeg vælger det forudbetalte abonnement kun hvis taletiden er ubegrænset.
• Meaning: I choose the prepaid subscription only if the talk time is unlimited.

If you say:

• Jeg vælger kun det forudbetalte abonnement.
• Meaning: I choose only the prepaid subscription and not another one.

So kun affects whatever comes after it or the phrase it is attached to. In your original sentence, kun hvis works together as a set phrase meaning only if.

It can be either, depending on context.

In Danish, the present tense is often broader than in English. So Jeg vælger can mean:

• I choose
• I am choosing
• sometimes even I will choose, if the context makes that clear

In this sentence, it most naturally sounds like a present decision rule: the speaker chooses that option only under that condition.