Kalau dokumen itu sudah dikirim, kamu tidak usah datang ke kantor sekarang.

Kalau means if in this sentence.

It introduces the condition:

• Kalau dokumen itu sudah dikirim = If the document has already been sent

In everyday Indonesian, kalau is very common in speech and informal writing. A more formal alternative is jika.

Examples:

• Kalau hujan, saya tinggal di rumah. = If it rains, I stay home.
• Jika hujan, acara dibatalkan. = If it rains, the event is canceled.

In Indonesian, demonstratives like ini and itu usually come after the noun.

So:

• dokumen itu = that document
• kantor itu = that office

This is the normal word order.

Compare:

• buku ini = this book
• rumah itu = that house

So dokumen itu is not strange word order in Indonesian—it is the standard pattern.

Sudah means already or shows that an action is completed.

So:

• sudah dikirim = has already been sent / is already sent

It tells you the sending happened before now and is finished.

Compare:

• Dokumen itu dikirim. = The document is sent / was sent.
• Dokumen itu sudah dikirim. = The document has already been sent.

Learners often see sudah as a kind of completion marker, not just a direct equivalent of English already.

Dikirim is the passive form of kirim.

• mengirim = to send
• dikirim = to be sent

In this sentence, the focus is on the document, not on the person sending it:

• dokumen itu sudah dikirim = the document has already been sent

If you used mengirim, you would normally need a sender/subject:

• Dia sudah mengirim dokumen itu. = He/she already sent the document.

So dikirim is natural because the document is the thing being talked about.

The sentence does not say who sent it, and that is perfectly normal in Indonesian.

With a passive form like dikirim, the agent can be omitted when it is:

• unknown,
• obvious from context,
• or unimportant.

So dokumen itu sudah dikirim just means the document has already been sent, without naming the sender.

If you want to mention the sender, Indonesian can do that too, for example:

• Dokumen itu sudah dikirim oleh Rina. = The document has already been sent by Rina.

Tidak usah means don’t need to, no need to, or there’s no need to.

So:

• kamu tidak usah datang = you don’t need to come

This expression is very common and useful. It often sounds softer and more practical than a direct prohibition.

Examples:

• Tidak usah khawatir. = No need to worry.
• Kamu tidak usah bayar sekarang. = You don’t need to pay now.

This is an important difference.

• tidak usah datang = you don’t need to come
• jangan datang = don’t come

Tidak usah means the action is unnecessary. Jangan means the action is forbidden or strongly discouraged.

So in your sentence:

• kamu tidak usah datang ke kantor sekarang means coming to the office is unnecessary if the document has already been sent.

If you said:

• kamu jangan datang ke kantor sekarang it would sound more like do not come to the office now.

Yes, kamu could be omitted if the context is clear.

Indonesian often drops subjects when they are understood. So both are possible:

• Kalau dokumen itu sudah dikirim, kamu tidak usah datang ke kantor sekarang.
• Kalau dokumen itu sudah dikirim, tidak usah datang ke kantor sekarang.

Including kamu makes it clearer who the speaker is talking to. It can also add a slightly more direct tone.

Ke is a preposition that usually means to when talking about movement toward a place.

So:

• datang ke kantor = come to the office

Other examples:

• pergi ke sekolah = go to school
• pulang ke rumah = go home / return home

Here, ke kantor shows the destination of datang.

Sekarang means now.

In this sentence, it modifies the idea of coming:

• tidak usah datang ke kantor sekarang = you don’t need to come to the office now

It suggests that, at this moment, coming is unnecessary.

Depending on context, this can mean:

• not now specifically,
• not at this time,
• or not anymore because the document issue is already handled.

Yes. Indonesian often does not need a separate word for then in if-sentences.

English often says:

• If the document has already been sent, then you don’t need to come...

In Indonesian, just putting the clauses together is enough:

• Kalau dokumen itu sudah dikirim, kamu tidak usah datang...

The conditional relationship is clear from context.

Yes. Indonesian allows the clauses to be rearranged.

Original:

• Kalau dokumen itu sudah dikirim, kamu tidak usah datang ke kantor sekarang.

Possible reversed version:

• Kamu tidak usah datang ke kantor sekarang kalau dokumen itu sudah dikirim.

Both are grammatical. Putting the kalau clause first is very common because it sets up the condition before giving the result.

It is fairly neutral to informal.

Reasons:

• kalau is common and conversational
• kamu is informal/neutral, not formal
• tidak usah is everyday language

In a more formal version, you might say:

• Jika dokumen itu sudah dikirim, Anda tidak perlu datang ke kantor sekarang.

Changes:

• kalau → jika for a more formal if
• kamu → Anda for formal you
• tidak usah → tidak perlu for a slightly more formal do not need to

Yes. Both can mean do not need to, but there is a slight difference in tone.

• tidak usah = very common, conversational, natural in speech
• tidak perlu = also common, often a bit more neutral or formal

So these are both possible:

• kamu tidak usah datang ke kantor sekarang
• kamu tidak perlu datang ke kantor sekarang

The meaning is almost the same in many contexts.

Usually yes in this sentence, but Indonesian tense works differently from English.

Indonesian does not change the verb the way English does. Instead, words like sudah help show time or completion.

So:

• sudah dikirim can correspond to has been sent
• in some contexts it may also be understood as was already sent

The exact English translation depends on context, but the key idea is that the sending is complete before the current moment.