Mobilnätet fungerar bra här.

Swedish often forms compound nouns by writing them as a single word.

So:

• mobil = mobile
• nät = network
• mobilnät = mobile network

Then the definite ending is added:

• mobilnätet = the mobile network

This is very normal in Swedish. English often uses several words where Swedish prefers one compound word.

The ending -et is the definite article attached to the noun. In English, you usually put the before the noun, but in Swedish it is often added to the end.

So:

• ett mobilnät = a mobile network
• mobilnätet = the mobile network

The noun nät is an ett-word in Swedish, so its definite singular form takes -et.

Because the main noun here is nät, and nät is an ett-word.

In Swedish, every noun is either:

• an en-word
• or an ett-word

Since nät is an ett-word, the whole compound mobilnät is also an ett-word.

So you get:

• ett nät
• ett mobilnät
• mobilnätet

The gender of a compound is determined by the last part of the compound.

Fungerar means works or functions.

It comes from the verb fungera = to work / to function.

So:

• det fungerar = it works
• mobilnätet fungerar = the mobile network works

In this sentence, fungerar means that the mobile network is working properly or giving good service.

Fungerar is the present tense of fungera.

For many Swedish verbs, the present tense is made by adding -r to the infinitive:

• fungera = to function
• fungerar = functions / is functioning / works

This is a very common pattern in Swedish.

In this sentence, bra means well.

Although bra often corresponds to English good, Swedish uses bra in many places where English uses well.

So:

• Det är bra. = It is good.
• Det fungerar bra. = It works well.

This is completely natural Swedish.

As for väl, that word usually has other meanings, such as well, I suppose, probably, or it can add emphasis. It is not the normal word here.

In this sentence, bra functions like an adverb, because it describes how the verb fungerar happens.

It tells you how the mobile network works:

• fungerar bra = works well

One useful thing for learners is that bra often keeps the same form, so you do not need to change it the way many adjectives change.

Här means here.

It is placed at the end because Swedish often puts words of place like här after the verb phrase:

• Mobilnätet fungerar bra här. = The mobile network works well here.

That word order sounds very natural.

You can also move här for emphasis in some contexts, but the original version is the most straightforward.

Yes, that is also grammatical.

Swedish is a V2 language, which means the finite verb usually comes in the second position in main clauses.

Compare:

• Mobilnätet fungerar bra här.
• Här fungerar mobilnätet bra.

Both are correct, but the emphasis changes a little:

• Mobilnätet first: more neutral, talking about the mobile network
• Här first: more emphasis on the location, here

Because the subject is already stated: mobilnätet.

English often says:

• The mobile network works well here

Swedish does exactly the same here:

• Mobilnätet fungerar bra här

You only need det if it is actually the subject:

• Det fungerar bra här = It works well here

But in your sentence, the subject is not det; it is mobilnätet.

It most naturally means the mobile network or cellular network.

In real-life usage, this can often imply things like:

• mobile coverage
• signal quality
• whether your phone can connect properly

So depending on context, it may sound close to English expressions like:

• The mobile network works well here
• Reception is good here
• Cell service works well here

But the literal word is specifically mobile network.

A few pronunciation points may help:

• ä is a front vowel, somewhat like the vowel in British English air or bed, depending on accent and length
• här has a long vowel: roughly hair without making it too English
• nätet is roughly NEH-tet, with the first ä sounding open and clear

Very approximate help for an English speaker:

• här ≈ hehr
• nätet ≈ neh-tet
• fungerar ≈ foon-geh-rar or fung-eh-rar, depending on how detailed you want to be

The exact sounds vary by dialect, but the most important thing is noticing ä and the stress pattern.

People would absolutely say this. It sounds natural and everyday.

It is a normal, practical sentence you might use when talking about:

• phone coverage
• internet access through mobile data
• whether a place has good service

So it is not overly formal, and it does not sound textbook-only. It is standard, useful Swedish.