Det blir bättre om vi går hem nu.

In this sentence, det is an impersonal subject. It does not have to refer to one specific object.

Swedish often uses det the same way English uses it in sentences like:

• It will be better if we go home now.
• It is raining.
• It seems late.

So in Det blir bättre om vi går hem nu, det is just the grammatical subject needed for the sentence. You can think of it as it in the general sense: things / the situation / it will get better.

Because blir comes from bli, which means become or get.

• Det är bättre = It is better
• Det blir bättre = It becomes / gets / will be better

In this sentence, blir suggests a change of state: things are not better yet, but they will improve if we go home now.

This is very common in Swedish. Compare:

• Jag är trött. = I am tired.
• Jag blir trött. = I am getting tired / I become tired.

So blir is used because the speaker means that the situation will improve.

Bättre is the comparative form of bra.

The forms are:

• bra = good
• bättre = better
• bäst = best

So:

• Det är bra. = It is good.
• Det blir bättre. = It gets better / It will be better.

This is an irregular adjective, so you just have to learn the forms.

Swedish often uses the present tense to talk about the near future, especially when the context already makes the future meaning clear.

So vi går hem nu can mean:

• we are going home now
• we go home now
• we leave for home now

In this sentence, the idea is conditional and future-oriented because of om and the whole context:

• Det blir bättre om vi går hem nu.
• literally: It gets/will be better if we go home now.

Swedish does not need a separate future form as often as English does.

Here, om means if.

It introduces a condition:

• Det blir bättre om vi går hem nu.
• It will be better if we go home now.

This is one of the most common uses of om in Swedish.

Be careful, because om can also mean other things in other contexts, such as about:

• Vi pratar om dig. = We are talking about you.

So the meaning depends on the sentence. In your example, om clearly means if.

Because om vi går hem nu is a subordinate clause.

In Swedish, main clauses usually follow the V2 rule, where the finite verb comes in second position:

• Nu går vi hem.
• Det blir bättre.

But subordinate clauses usually have subject before verb:

• ... om vi går hem nu
• ... eftersom vi är trötta
• ... när han kommer

So:

• main clause: Det blir bättre
• subordinate clause: om vi går hem nu

That is why vi comes before går.

Because hem is used for movement toward home, while hemma means at home.

• gå hem = go home
• vara hemma = be at home

Compare:

• Vi går hem nu. = We are going home now.
• Vi är hemma nu. = We are at home now.

This is a very common distinction in Swedish, and English speakers often need time to get used to it.

Nu means now.

It adds immediacy and suggests that going home should happen right away:

• vi går hem = we go home / we’re going home
• vi går hem nu = we go home now / we’re going home now

In this sentence, nu helps show that the speaker thinks leaving immediately would improve the situation.

Yes, Swedish word order can change depending on emphasis, but the basic structure here is natural and standard:

• Det blir bättre om vi går hem nu.

You might also hear:

• Om vi går hem nu blir det bättre.

This means the same thing, but now the if-clause comes first. When a subordinate clause comes first in Swedish, the main clause still follows normal V2 order:

• Om vi går hem nu blir det bättre.
  • not Om vi går hem nu det blir bättre

So both are correct, but the focus is slightly different.

Yes, very common.

Det blir bättre is a natural everyday way to say:

• It will get better
• It will be better
• Things will improve

Swedish often uses this kind of impersonal det + blir + adjective structure:

• Det blir svårt. = It will be difficult.
• Det blir roligt. = It will be fun.
• Det blir sent. = It will be late.
• Det blir bättre. = It will be better.

So this sentence is a very natural, idiomatic pattern to learn.

It is usually a mix of a judgment and a suggestion.

The speaker is saying that, in their opinion, the situation will improve under one condition:

• if we go home now

So it can sound like:

• a practical suggestion
• a gentle recommendation
• a prediction about the result of leaving

In real conversation, tone of voice matters. It could mean something like:

• We should probably go home now; that would be better.
• Things will be better if we leave now.

So grammatically it is a statement, but pragmatically it often functions as a suggestion.