Simkortet fungerar naturligtvis.

Swedish very often forms compounds as a single word, so simkort = SIM card.

The ending -et is the definite article attached to the noun, so:

• ett simkort = a SIM card
• simkortet = the SIM card

So simkortet literally means the SIM card.

Swedish nouns belong to different grammatical genders, and that affects the definite ending.

Simkort is an ett-word (neuter), so:

• ett simkort = a SIM card
• simkortet = the SIM card

If it were an en-word, the definite form would usually end in -en instead.

Fungerar is the present tense of fungera, which means to work, to function, or to operate.

So here fungerar means that the SIM card works / is functioning.

Examples:

• Det fungerar. = It works.
• Telefonen fungerar inte. = The phone doesn’t work.

Swedish does not use do-support the way English does.

In English, you often need do/does:

• The SIM card does work
• Does the SIM card work?
• The SIM card does not work

In Swedish, you normally just use the main verb itself:

• Simkortet fungerar. = The SIM card works.
• Fungerar simkortet? = Does the SIM card work?
• Simkortet fungerar inte. = The SIM card does not work.

So fungerar already carries the present-tense meaning by itself.

Yes. Naturligtvis usually means of course, naturally, or naturally enough, depending on context.

In this sentence, it most naturally corresponds to of course or naturally.

It is a bit more formal or neutral than some everyday alternatives like:

• såklart
• förstås

So Simkortet fungerar naturligtvis. can sound like:

• The SIM card works, of course.
• Naturally, the SIM card works.

In a normal Swedish main clause, the finite verb usually comes early, and adverbs like naturligtvis often come after it.

So this order is natural:

• Simkortet fungerar naturligtvis.

You can also move naturligtvis to the front for emphasis:

• Naturligtvis fungerar simkortet.

Both are grammatical, but the emphasis changes slightly. Starting with naturligtvis puts more focus on of course.

Yes. Swedish main clauses follow the V2 rule (verb-second), which means the finite verb normally comes in the second position.

In:

• Simkortet fungerar naturligtvis

the structure is:

• Simkortet = first element
• fungerar = second element

That is exactly what Swedish expects in a main clause.

If you begin with Naturligtvis, then the verb still stays second:

• Naturligtvis fungerar simkortet

Notice that the subject simkortet moves after the verb in that version.

Yes. Swedish present tense often covers both the English simple present and present progressive.

So fungerar can mean:

• works
• is working

Which one sounds best in English depends on the situation.

You add inte:

• Simkortet fungerar inte. = The SIM card doesn’t work.

With an adverb like naturligtvis, you may see:

• Simkortet fungerar naturligtvis inte. = The SIM card of course doesn’t work.

The exact placement of inte and other adverbs can vary a bit depending on emphasis, but fungerar inte is the basic negative pattern.

In Swedish yes/no questions, the verb usually comes first:

• Fungerar simkortet? = Does the SIM card work?

If you want to include naturligtvis, it would usually sound a bit unusual unless the context really calls for it, but grammatically you could say:

• Fungerar simkortet naturligtvis?

More naturally, you would usually just ask:

• Fungerar simkortet?

Yes, sometimes you may see SIM-kort or SIM-kortet with a hyphen, especially to make the compound easier to read.

But writing it as one word, simkortet, is also normal and fully correct in Swedish.

Swedish generally prefers compounds to be written as one word.