Mobildatan är obegränsad och fungerar i mobilnätet.

Because Swedish usually writes compound nouns as a single word.

• mobil + data = mobildata
• mobil + nät = mobilnät

English often writes these as two words, like mobile data and mobile network, but Swedish normally joins them together.

Then Swedish adds the definite ending to the whole compound:

• mobildata → mobildatan
• mobilnät → mobilnätet

So a good habit is: if English has a noun + noun combination, Swedish very often makes it one word.

That -n is the definite ending, meaning the.

• mobildata = mobile data
• mobildatan = the mobile data

Swedish often puts the at the end of the noun instead of using a separate word.

Here, mobildata behaves like a common-gender noun ending in a vowel, so the definite form gets -n.

Compare:

• en kamera → kameran
• en vecka → veckan
• mobildata → mobildatan

In a sentence like this, the definite form often refers to the specific mobile data included in a plan or offer.

Because nät is a neuter noun in Swedish.

• ett nät = a network / a net
• nätet = the network

Since the head noun in the compound is nät, the compound is also neuter:

• ett mobilnät
• mobilnätet

So:

• common gender nouns often take -en
• neuter nouns often take -et

That is why you get mobildatan but mobilnätet.

Because the adjective agrees with mobildatan, which is singular and common gender.

After är, Swedish uses a predicative adjective, and that adjective still agrees with the noun:

• common gender singular: obegränsad
• neuter singular: obegränsat
• plural: obegränsade

So:

• Mobildatan är obegränsad.
• Abonnemanget är obegränsat.
• Tjänsterna är obegränsade.

Even though mobildatan is definite, the adjective after är is still obegränsad, not a separate definite-form adjective.

It literally means something like unlimited or not limited.

You can break it down like this:

• begränsa = to limit
• begränsad = limited
• o- = a negative prefix, often like English un-
• obegränsad = unlimited

So this is a useful pattern to notice. Swedish o- often works similarly to English negative prefixes:

• möjlig = possible

• omöjlig = impossible

• vanlig = usual/common
• ovanlig = unusual

Here fungerar means works, functions, or operates.

The verb is fungera = to function / to work.

• fungerar = present tense

In tech or service language, Swedish often uses fungera the same way English uses work:

• Det fungerar. = It works.
• Tjänsten fungerar i Sverige. = The service works in Sweden.

So in this sentence, it means the mobile data works or is usable in the mobile network.

Because Swedish and English do not always use the same prepositions.

In English, you would often say on the mobile network, but Swedish commonly says i mobilnätet in this type of context.

So:

• fungerar i mobilnätet = works on/in the mobile network

This is best learned as a natural Swedish phrase rather than translated word-for-word.

A useful warning: Swedish på nätet often means online / on the internet, while i mobilnätet refers more specifically to the mobile network system itself.

Because Swedish usually expresses definiteness with an ending on the noun.

In this sentence:

• mobildatan = the mobile data
• mobilnätet = the mobile network

So instead of a separate word like English the, Swedish often adds a suffix:

• bok → boken
• hus → huset
• mobilnät → mobilnätet

This is one of the biggest structural differences between English and Swedish.

Because the same subject, mobildatan, applies to both parts of the sentence.

The structure is:

• Mobildatan är obegränsad
• (mobildatan) fungerar i mobilnätet

Swedish, like English, often leaves out the repeated subject when it is clearly the same:

• Mobildatan är obegränsad och fungerar i mobilnätet.

You could say ... och den fungerar i mobilnätet, but that would usually sound more repetitive unless you want extra emphasis.

In this meaning, it is usually treated as a mass noun, similar to an uncountable noun in English.

So you normally talk about:

• mobildata
• mycket mobildata = a lot of mobile data
• lite mobildata = a little mobile data
• 5 GB mobildata

You would not normally make a regular plural meaning mobile datas.

So even though English learners may wonder whether data is plural, in everyday Swedish mobildata is usually treated as one substance/service concept.

Both are present tense.

• är = is / are
• fungerar = works / functions

This sentence describes a general current fact about the mobile data service.

Also, Swedish verbs do not change depending on the subject the way English verbs sometimes do. For example, Swedish uses the same present-tense verb form with all persons:

• jag fungerar
• du fungerar
• den fungerar
• de fungerar

So you do not need to learn different present-tense endings for different subjects.

Sometimes yes, but the meaning or feel can change slightly.

• Mobildata är obegränsad can sound more general: mobile data is unlimited
• Mobildatan är obegränsad points more clearly to the specific mobile data being discussed, such as the data in a particular subscription or offer

In marketing or plan descriptions, the definite form is very common because it refers to the included feature as something specific and known from the context.