Jag blev också lättad när jag såg att barnet bara var trött och inte sjukt.

Blev lättad means became relieved, so it emphasizes a change of state.

• Jag blev lättad = I became relieved / I felt relieved
• Jag var lättad = I was relieved

In this sentence, the speaker is describing the moment they found out the child was only tired, so blev fits better because it shows that relief started at that point.

In Swedish main clauses, adverbs like också often come after the finite verb.

So:

• Jag blev också lättad = I also became relieved

This word order is very natural in Swedish. English often allows more flexibility, but Swedish tends to keep this pattern in statements:

• subject + finite verb + adverb

När means when here and introduces a time clause.

• när jag såg... = when I saw...

It tells us when the speaker became relieved. This is a very common use of när in Swedish.

Here att means that and introduces a subordinate clause:

• jag såg att barnet... = I saw that the child...

In English, that is often optional:

• I saw that the child was tired
• I saw the child was tired

In Swedish, att is usually included in this kind of sentence.

Barnet means the child, while ett barn means a child.

• ett barn = a child
• barnet = the child

So the sentence refers to a specific child, not just any child. Also, barn is a neuter noun, which matters later for adjective agreement.

Bara means only or just. In this sentence, it limits what the child was:

• barnet bara var trött = the child was only tired / just tired

Placing bara before var is natural Swedish word order here. It shows that trött is the limited explanation, not something more serious.

This is about adjective agreement.

Because barnet is a neuter singular noun, predicate adjectives often take the -t form:

• sjuk → sjukt

So:

• barnet var sjukt = the child was sick

But trött already has the form trött for both common gender and neuter in this use, so it does not change further.

Compare:

• en man är sjuk
• ett barn är sjukt

but:

• en man är trött
• ett barn är trött

Swedish often leaves out repeated words when they are understood.

So:

• barnet bara var trött och inte sjukt

really means:

• barnet bara var trött och inte var sjukt

The second var is omitted because it would be repetitive. English does the same thing:

• the child was tired and not sick

Because the adjective must agree with barnet, which is neuter.

• barnet = neuter singular
• sjuk becomes sjukt

So:

• barnet var inte sjukt = the child was not sick

If the subject were a common-gender noun, you would usually use sjuk instead:

• pojken var inte sjuk = the boy was not sick

The whole sentence is talking about something that happened in the past, so the verbs are in the past tense:

• blev = became
• såg = saw
• var = was

The timeline is:

1. the speaker saw
2. that the child was only tired
3. and then the speaker became relieved

So all the past forms fit together naturally.

Lättad is an adjective here, used after blev.

• lättad = relieved

In Swedish, verbs like vara and bli are often followed by an adjective describing a state:

• jag är trött = I am tired
• jag blev lättad = I became relieved

So blev is the verb, and lättad describes how the speaker felt.

Yes. In this sentence, both are possible in English:

• the child was only tired
• the child was just tired

Both match bara var trött. The exact choice depends on tone, but the Swedish meaning is the same: the child was tired, not sick.

Swedish subordinate clauses follow their own word-order pattern. After att, the subject usually comes before adverbs like bara and inte.

So:

• att barnet bara var trött
• that the child was only tired

A useful thing to notice is that Swedish often places sentence adverbs inside subordinate clauses in a very regular way. As you learn more Swedish, you will see this pattern often after words like att, när, eftersom, and om.