Om det regnar, tar vi bussen i stället.

This is because Swedish uses verb-second word order in main clauses.

The main clause here is:

tar vi bussen i stället

In Swedish main clauses, the finite verb usually comes in the second position. When a different element comes first—here, the whole if-clause Om det regnar—the verb must come before the subject in the main clause.

So:

• Om det regnar, tar vi bussen i stället. = correct
• Om det regnar, vi tar bussen i stället. = incorrect

This is very common in Swedish:

• I morgon åker jag till Stockholm.
• När han kommer, börjar vi.

English does not do this, so it often feels unusual to learners.

In Swedish, weather expressions often use det as a kind of dummy subject, just like English uses it in it is raining.

So:

• det regnar = it is raining
• det snöar = it is snowing
• det blåser = it is windy / it’s blowing

The det does not refer to a specific thing. It is just required by the grammar.

Very often, yes. In this sentence, om means if:

• Om det regnar = If it rains / If it is raining

But om can also mean whether in other contexts:

• Jag vet inte om han kommer. = I don’t know whether he is coming.

So om can mean:

• if
• whether

The exact meaning depends on the sentence.

Swedish often uses the present tense to talk about the future when the meaning is clear from context.

So:

• Om det regnar, tar vi bussen i stället.

can mean:

• If it rains, we’ll take the bus instead.
• If it is raining, we’re taking the bus instead.

This is normal Swedish usage. English often uses present tense too in the if-clause:

• If it rains, we’ll take the bus.

So this part is actually quite similar to English.

Bussen is the definite form of buss:

• en buss = a bus
• bussen = the bus

In Swedish, the definite article is usually added as an ending:

• en bil → bilen
• ett hus → huset
• en buss → bussen

Here, bussen means the bus, or more naturally in English, just the bus as the means of transport they will use.

I stället means instead or instead of that.

So:

• tar vi bussen i stället = we take the bus instead

It shows that one option is chosen in place of another. The unstated idea here is something like:

• maybe they would normally walk, bike, or drive
• but if it rains, they choose the bus instead

You will also see the spelling istället, written as one word. Both occur, but i stället is the standard separate form in modern formal writing.

The comma in:

Om det regnar, tar vi bussen i stället.

is helpful and very common, especially in teaching materials, because it clearly separates the if-clause from the main clause.

In modern Swedish, the comma is often optional in short sentences like this. So you may also see:

Om det regnar tar vi bussen i stället.

Both are acceptable. The comma is mainly a matter of style and clarity here.

Yes, absolutely.

That version is also correct:

• Vi tar bussen i stället om det regnar.

Now the main clause comes first, so normal word order is used:

• Vi = subject
• tar = verb

Compare:

• Om det regnar, tar vi bussen i stället.
• Vi tar bussen i stället om det regnar.

They mean essentially the same thing, but the first version puts more emphasis on the condition if it rains.

Yes, tar is the present tense of ta, which often means take.

But in transport expressions, Swedish uses ta much like English does:

• ta bussen = take the bus
• ta tåget = take the train
• ta bilen = take the car

So this is a very natural expression, not a strange literal translation.

The sentence has two parts:

1. Om det regnar
   This is a subordinate clause because it starts with om and cannot stand alone as a full statement in the same way.

2. tar vi bussen i stället
   This is the main clause, the part that gives the main action.

A useful clue is that the subordinate clause gives the condition, and the main clause tells what happens if that condition is true.

In Swedish, when the subordinate clause comes first, the main clause still follows verb-second order, which is why you get tar vi.

Yes. Swedish present tense is often broad enough to cover both ideas, depending on context.

So:

• Om det regnar can mean:
  • If it rains
  • If it is raining

Usually the situation makes the meaning clear:

• talking about tomorrow’s plan: if it rains
• looking out the window right now: if it is raining

Swedish often leaves that distinction to context instead of marking it very precisely.

A simple learner-friendly pronunciation is:

ee STEL-let

A bit more closely:

• i sounds like English ee
• stället has the Swedish ä, somewhat like the e in bed, but not exactly
• the tt is pronounced as a normal t
• the final -et is reduced, so it sounds a bit like -et or -it depending on the speaker

If you want to sound more natural, the stress is mainly on ställ-.