Eu vou buscar meus filhos na escola depois do trabalho.

Yes. Portuguese often drops subject pronouns when the verb already makes the subject clear.

So both are natural:

• Eu vou buscar meus filhos na escola depois do trabalho.
• Vou buscar meus filhos na escola depois do trabalho.

Including eu can add a little emphasis, contrast, or clarity. In everyday Brazilian Portuguese, both versions are very common.

Vou buscar uses the very common ir + infinitive structure, which is one of the main ways to talk about the future in Brazilian Portuguese.

• vou buscar = I’m going to pick up / I will pick up

This is usually more common in speech than the simple future form:

• buscarei meus filhos...

The simple future is correct, but it often sounds more formal, written, or less conversational.

Yes, buscar can mean both to look for and to go get / pick up, depending on context.

In this sentence, buscar meus filhos na escola means:

• to pick up my children at school

Because the children are at school, the meaning is naturally go get them rather than search for them.

In Brazilian Portuguese, buscar is very commonly used this way.

Both are possible, but meus filhos is very natural here.

Portuguese often uses possessives either:

• meus filhos
• os meus filhos

In Brazilian Portuguese, dropping the article before the possessive is very common in many contexts. Adding the article can sound a bit more specific, emphatic, or just be a style choice.

So:

• vou buscar meus filhos = very natural
• vou buscar os meus filhos = also correct

Na is a contraction of:

• em + a = na

So:

• na escola = at the school / at school

Portuguese commonly contracts em with definite articles:

• em + o = no
• em + a = na
• em + os = nos
• em + as = nas

That is why you get na escola, not em a escola.

Do is a contraction of:

• de + o = do

So:

• depois do trabalho = after work / after the work

This kind of contraction is extremely common in Portuguese. Some other examples:

• de + a = da
• de + os = dos
• de + as = das

So depois do trabalho is the normal form, not depois de o trabalho.

Portuguese often uses location where English might use either at or from, depending on the situation.

• buscar meus filhos na escola literally gives the location: pick up my children at school
• In context, that naturally implies pick them up from school

So Portuguese does not need a separate from here. The place where the action happens is enough.

Both are possible, but they are slightly different in feel.

• depois do trabalho = after work / after my workday
• depois de trabalhar = after working / after I work

The first one refers more to the noun work as part of your schedule or day.
The second focuses more on the action of working.

In this sentence, depois do trabalho sounds very natural and idiomatic.

Yes. Portuguese is fairly flexible with word order, especially with time expressions.

For example, these are all natural:

• Eu vou buscar meus filhos na escola depois do trabalho.
• Depois do trabalho, eu vou buscar meus filhos na escola.
• Vou buscar meus filhos na escola depois do trabalho.

The original order is very normal. Moving depois do trabalho to the front gives it a bit more emphasis.

Yes, but the result is usually more formal in everyday Brazilian Portuguese.

A more formal version would be:

• Vou buscá-los na escola depois do trabalho.

That comes from:

• buscar + os → buscá-los

In spoken Brazilian Portuguese, many people prefer the full noun phrase instead:

• Vou buscar meus filhos...

So the original sentence sounds very natural and conversational.

The tricky part is lh.

In Brazilian Portuguese, lh makes a sound similar to the lli in million for many English speakers, though it is not exactly the same.

So filhos sounds approximately like:

• FEE-lyoos or FEE-lyus depending on accent

A rough breakdown:

• fi = fee
• lh = palatal sound, like softened ly
• os = usually a final us-like sound in many Brazilian accents

This word is often hard for learners, so it is worth practicing separately:

• filho = son
• filhos = sons / children

Literally, filhos means sons if you are being very literal about gender. But in real usage, Portuguese often uses the masculine plural for a mixed group.

So meus filhos can mean:

• my sons
• my children if the group includes boys and girls

If the speaker had only daughters, they would say:

• minhas filhas

Not in the same structure.

Here, vou buscar already means I’m going to pick up. The verb vou is part of the future expression ir + infinitive.

If you add para, the structure changes and means something more like I am going somewhere in order to pick up. For example:

• Vou à escola para buscar meus filhos.
  = I’m going to the school to pick up my children.

But in the original sentence, vou buscar is simply the natural future form, so para is not needed.

Yes, absolutely. This sentence sounds natural, clear, and everyday Brazilian Portuguese.

It has several very common features of spoken language:

• optional eu
• future with ir + infinitive: vou buscar
• everyday vocabulary: filhos, escola, trabalho
• normal contractions: na, do

So this is a very good model sentence for natural Brazilian Portuguese.