Hvis det regner i morgen, bliver vi sikkert hjemme.

Because Danish main clauses normally follow the verb-second rule.

Here, the sentence begins with the subordinate clause Hvis det regner i morgen. After that whole clause, the main clause starts, and the finite verb must come first in the main clause:

• Hvis det regner i morgen, bliver vi sikkert hjemme.

So the order is:

• fronted element: Hvis det regner i morgen
• finite verb: bliver
• subject: vi

If you started directly with the main clause, you would say:

• Vi bliver sikkert hjemme, hvis det regner i morgen.

Both are correct, but the word order changes because of the clause placed first.

Hvis means if.

It introduces a subordinate clause (also called a dependent clause), in this case a condition:

• Hvis det regner i morgen = If it rains tomorrow

This clause cannot stand alone as a complete sentence in the same way the main clause can. It sets up the condition for what follows.

In Danish, weather expressions often use det as a dummy subject, just like English uses it:

• det regner = it is raining / it rains
• det sner = it is snowing
• det blæser = it is windy / it is blowing

The det does not refer to a specific thing. It is just required grammatically.

Danish very often uses the present tense to talk about the future when the time is already clear from the context.

So:

• Hvis det regner i morgen literally uses present tense, but it means If it rains tomorrow
• bliver vi sikkert hjemme literally uses present tense, but it means we will probably stay home

The future meaning is understood because of i morgen and the conditional context. This works a lot like English in clauses such as If it rains tomorrow...

No. Although blive often means become, it also has other uses.

In the expression blive hjemme, it means stay at home / stay home.

So:

• blive = can mean become, remain, or stay, depending on context
• blive hjemme = stay home

This is a very common expression, and learners should understand it as a set phrase rather than translate it word-for-word.

Because hjemme means at home, while hjem usually expresses movement home.

Compare:

• Vi er hjemme. = We are at home.
• Vi bliver hjemme. = We stay home / stay at home.
• Vi går hjem. = We go home.

A helpful rule is:

• hjem = direction or movement
• hjemme = location or staying in that place

Since this sentence is about staying, hjemme is the correct choice.

Here sikkert means probably.

So:

• Vi bliver sikkert hjemme = We will probably stay home

Be careful: sikkert can also sometimes mean certainly or surely depending on context, but in everyday speech it often expresses probability.

In Danish, sentence adverbs such as sikkert, nok, jo, vist, and ikke usually appear in a typical position inside the clause, often after the subject and before other elements like place expressions.

So in the main clause:

• bliver = finite verb
• vi = subject
• sikkert = sentence adverb
• hjemme = place/state expression

That gives:

• bliver vi sikkert hjemme

This placement is very natural in Danish word order.

Yes. That is also correct.

The word så can be added after an initial if clause, much like then in English:

• Hvis det regner i morgen, så bliver vi sikkert hjemme.

In many cases, så is optional. Without it, the sentence is still perfectly natural:

• Hvis det regner i morgen, bliver vi sikkert hjemme.

Using så can make the connection between condition and result a little more explicit.

Because the sentence begins with a subordinate clause:

• Hvis det regner i morgen, ...

In standard Danish writing, a comma is often placed between the subordinate clause and the main clause. So the comma marks the boundary between:

• conditional clause: Hvis det regner i morgen
• main clause: bliver vi sikkert hjemme

Comma rules in Danish have changed over time and can vary depending on style and school tradition, but in a sentence like this, the comma is very normal and useful.

Yes. Danish allows different word orders depending on what you want to emphasize.

For example:

• Vi bliver sikkert hjemme, hvis det regner i morgen.

This version starts with the main clause instead of the if clause. The meaning stays the same, but the emphasis changes slightly.

Notice that when the main clause comes first, the normal order is:

• Vi bliver ...

But when another element comes before the main clause, the verb-second rule gives:

• ..., bliver vi ...

Yes, regner can correspond to both English rains and is raining, depending on context.

Danish often does not distinguish as sharply as English between simple present and progressive in basic forms.

So:

• Det regner can mean It is raining
• In a future condition, Hvis det regner i morgen means If it rains tomorrow

The exact English translation depends on the situation, but the Danish form stays the same here.

A useful breakdown is:

• Hvis = if
• det regner = it rains / it is raining
• i morgen = tomorrow
• bliver vi = we stay / we will stay
• sikkert = probably
• hjemme = at home / home

Structure:

• Hvis det regner i morgen = conditional clause
• bliver vi sikkert hjemme = main clause

This is a good example of a very common Danish pattern:

• Hvis + subordinate clause, verb + subject + adverb + rest

That pattern is worth learning early because it appears all the time.