Se você tiver tempo, pode me ajudar com o relatório?

Here tempo means time, more specifically available time or free time.

In Portuguese, tempo can mean:

• time
• weather

But in Se você tiver tempo, the meaning is clearly if you have time / if you have some time available.

For weather, the context would be different, for example:

• Como está o tempo hoje? = How is the weather today?

Because after se when talking about a possible future condition, Portuguese often uses the future subjunctive.

So:

• Se você tiver tempo = If you have time / If you happen to have time

The verb ter is irregular, and its future subjunctive form is tiver.

This structure is extremely common in Portuguese:

• Se você puder, me avise. = If you can, let me know.
• Se ele vier, eu falo com ele. = If he comes, I’ll talk to him.

For an English speaker, it helps to think:

• English often uses the present after if for future meaning.
• Portuguese often uses the future subjunctive in that same kind of sentence.

You might hear it sometimes in conversation, but Se você tiver tempo is the most natural and grammatically expected form here.

The difference is roughly:

• Se você tiver tempo = If you have time in the sense of if you end up having time later / if you are available
• Se você tem tempo = more like if you have time as a present fact or general situation

In a request like this, where the speaker means if you happen to have time, tiver is the better choice.

Because você takes third-person singular verb forms in Portuguese.

So:

• você pode
• você tem
• você faz

not:

• você podes
• você tens

This is normal in both Brazilian Portuguese and European Portuguese. Historically, você comes from an older expression that was treated grammatically as third person, and that pattern stayed.

So in this sentence:

• você tiver
• você pode

are exactly what you should expect.

Because Se você tiver tempo is a conditional clause at the beginning of the sentence, and it is followed by the main clause:

• Se você tiver tempo, = conditional part
• pode me ajudar com o relatório? = main request

In English, we also usually put a comma after an initial if clause:

• If you have time, can you help me with the report?

So the punctuation works very similarly here.

In Brazilian Portuguese, this is the most natural word order.

• me = me
• ajudar = to help

So me ajudar means help me.

After a verb like pode, Brazilian Portuguese normally prefers:

• pode me ajudar

This sounds natural and standard in Brazil.

You may also see forms like:

• pode ajudar-me

but that sounds more formal and is much more associated with European Portuguese or very formal written style.

So for Brazilian Portuguese, pode me ajudar is the version learners should focus on.

Com o relatório means with the report.

The preposition com is used here because in Portuguese you can help someone with something:

• ajudar alguém com alguma coisa

So:

• me ajudar com o relatório = help me with the report

The article o means the, so o relatório is the report.

That suggests it is a specific report that both people already know about.

Compare:

• com o relatório = with the report (a specific one)
• com um relatório = with a report (any report / one report)

Pode me ajudar? is usually polite enough in everyday Brazilian Portuguese. It sounds natural, normal, and friendly.

• Pode me ajudar? = Can you help me?
• Poderia me ajudar? = Could you help me?

Poderia sounds a bit more polite, softer, or more formal.

So:

• with coworkers, classmates, friends: pode me ajudar? is often perfect
• in a more formal situation: poderia me ajudar? may sound better

You could also make it even softer with por favor:

• Se você tiver tempo, pode me ajudar com o relatório, por favor?

Yes. That sounds very natural in Brazilian Portuguese.

Portuguese often leaves out the subject when it is clear from context. So both are possible:

• Se você tiver tempo, pode me ajudar com o relatório?
• Se tiver tempo, pode me ajudar com o relatório?

Including você can make the sentence a little more explicit or direct, but omitting it is very common in speech.

It is neutral to mildly polite. It is not extremely formal, but it is polite enough for many everyday situations.

In Brazil, você is the normal singular you in many regions and contexts, so this sentence works well with:

• coworkers
• classmates
• acquaintances
• many everyday professional situations

If you want to sound more formal or respectful, you could say:

• Se o senhor tiver tempo, poderia me ajudar com o relatório?
• Se a senhora tiver tempo, poderia me ajudar com o relatório?

So the original sentence is a very useful, natural everyday request in Brazilian Portuguese.