Soppan var lagom varm, så barnet kunde äta direkt.

In Swedish, the definite article is usually attached to the end of the noun.

• soppa = soup

• soppan = the soup

• barn = child
• barnet = the child

The indefinite forms would be:

• en soppa = a soup
• ett barn = a child

So soppan and barnet are simply the definite forms of the nouns.

Lagom is a very common Swedish word that does not have one perfect English equivalent. It usually means something like:

• just right
• enough
• the right amount
• not too much, not too little

In this sentence, lagom varm means the soup was just warm enough or the right temperature for the child to eat. The idea is especially that it was not too hot.

Because lagom is generally invariable. It usually stays the same regardless of gender, number, or what it modifies.

For example:

• lagom varm = just warm enough
• lagom varmt = just warm enough
• lagom stora = just the right size
• lagom mycket = just enough

So unlike many Swedish adjectives, lagom usually does not get different endings.

Because varm agrees with soppan, and soppan is a singular en-word.

With predicate adjectives after vara, Swedish uses:

• common gender singular: varm
• neuter singular: varmt
• plural: varma

So:

• Soppan var varm = The soup was warm
• Vattnet var varmt = The water was warm
• Sopporna var varma = The soups were warm

A useful extra point: even though soppan is definite, the adjective is still varm, not varma, because this is a predicate adjective after vara. Compare:

• den varma soppan = the warm soup
• soppan var varm = the soup was warm

Because the sentence is in the past tense.

• är = is

• var = was

• kan = can
• kunde = could / was able to

So:

• Soppan var ... = The soup was ...
• barnet kunde äta ... = the child could eat ...

The speaker is describing a situation that had already happened.

Here it means ability / possibility, not permission.

So barnet kunde äta direkt means the child was able to eat right away, because the soup was at a suitable temperature.

It does not mean someone gave the child permission to eat.

Because after a modal verb like kunna, Swedish normally uses the bare infinitive.

So you say:

• kunde äta
• kan komma
• vill gå
• måste läsa

not:

• kunde att äta
• kan att komma

So in this sentence, äta is the infinitive, and it comes directly after kunde.

Here så means so in the sense of therefore / as a result.

The sentence has this structure:

• Soppan var lagom varm = the situation
• så barnet kunde äta direkt = the result

So the second clause is the consequence of the first one: the soup was the right temperature, so the child could eat right away.

Because in this sentence så is functioning as a conjunction linking two main clauses. After that kind of så, Swedish keeps normal main-clause order:

• barnet kunde

That is, subject + verb.

Compare:

• Soppan var lagom varm, så barnet kunde äta direkt.

If you used a fronted adverb such as därför at the start of a clause, then Swedish would use inversion:

• Därför kunde barnet äta direkt.

So the word order in your sentence is normal and natural.

Here direkt means right away, immediately, or straight away.

So barnet kunde äta direkt means the child did not need to wait for the soup to cool down.

In this context, direkt is about time, not about moving in a straight line or doing something in a direct manner.

Not always. In Swedish, commas are often a bit less rigid than in English.

So both of these can be seen:

• Soppan var lagom varm, så barnet kunde äta direkt.
• Soppan var lagom varm så barnet kunde äta direkt.

The comma is often used to make the sentence easier to read or to mark a pause, but it is not strictly necessary in every case.