Saya malu karena belum membalas pesan itu.

Belum means not yet, so it shows that the action still has not happened, but it may happen later.

• Saya belum membalas pesan itu = I haven’t replied to that message yet.
• Saya tidak membalas pesan itu = I did not reply / I don’t reply to that message.

In this sentence, belum is the natural choice because the speaker is ashamed that they still haven’t replied.

Membalas comes from the root balas, which means to return, to respond, or to reply, depending on context.

In this sentence, membalas pesan means to reply to a message.

You may also see:

• balas pesan = reply to a message
• membalas email = reply to an email
• membalas kebaikan = return a kindness

So here, membalas is a verb meaning to reply/respond to.

In Indonesian, membalas can take the thing being replied to directly as its object.

So:

• membalas pesan = reply to a message
• membalas email = reply to an email

English needs to in reply to a message, but Indonesian does not need an equivalent preposition here.

Malu can cover several related ideas, including shy, embarrassed, and ashamed. The exact meaning depends on context.

In this sentence, ashamed or embarrassed fits best:

• Saya malu karena belum membalas pesan itu = I feel ashamed/embarrassed because I haven’t replied to that message yet.

If you say:

• Saya malu bertemu orang baru, it can mean I’m shy meeting new people.

So malu is a broad word, and context tells you which English word is best.

Karena means because. It introduces the reason.

Structure:

• Saya malu = I am ashamed/embarrassed
• karena belum membalas pesan itu = because I haven’t replied to that message yet

So karena connects the feeling with its cause.

Yes, very often in conversation, if the subject is already clear.

You might hear:

• Malu karena belum membalas pesan itu.

This can still mean I’m ashamed because I haven’t replied to that message yet, especially if the speaker is obviously talking about themselves.

However, including saya makes the sentence clearer and more complete, especially for learners or in written language.

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

So:

• pesan itu = that message
• buku ini = this book

This is different from English, where this and that come before the noun.

Yes. Pesan tersebut also means that message, but it sounds more formal or written than pesan itu.

Compare:

• pesan itu = that message, normal and common
• pesan tersebut = that message, more formal

For everyday speech, pesan itu is usually the most natural choice.

Yes. In modern Indonesian, pesan commonly means a message, including a text or chat message.

Examples:

• Saya menerima pesan darinya. = I received a message from him/her.
• Belum balas pesan WhatsApp-nya. = I haven’t replied to their WhatsApp message.

So in this sentence, pesan naturally refers to a message someone sent.

Yes, sometimes belum can stand on its own if the verb is understood from context.

For example:

• Sudah makan? = Have you eaten?
• Belum. = Not yet.

But in your sentence, the full form belum membalas is used because the speaker explicitly says what has not been done yet.

The standard word order here is:

Saya + malu + karena + belum membalas pesan itu

This is the most neutral and natural order.

You can change things for emphasis, but it may sound less neutral. For example:

• Karena belum membalas pesan itu, saya malu.

This is grammatical, but it sounds more literary or emphasized, like Because I haven’t replied to that message yet, I feel ashamed.

For everyday use, the original sentence is best.

Yes. Both are correct.

• Saya malu = I’m ashamed / embarrassed
• Saya merasa malu = I feel ashamed / embarrassed

Merasa means to feel, so adding it makes the emotion slightly more explicit. In many cases, Saya malu is already completely natural and sufficient.

Sometimes, but not always.

• membalas pesan = reply to a message
• menjawab pesan = answer a message

In many contexts, both can work. However:

• membalas often emphasizes replying back
• menjawab often emphasizes answering

For a text/chat message, membalas pesan is extremely common and natural. It strongly matches the idea of replying.

Indonesian verbs do not change form for tense the way English verbs do. There is no verb ending here that specifically marks past or present.

Time is understood from context and from words like belum.

So:

• belum membalas tells us the action has not happened yet
• the overall meaning is something like I’m ashamed because I haven’t replied to that message yet

Indonesian usually expresses time through context, time words, or particles rather than verb conjugation.

It is neutral and natural. It works well in both everyday speech and normal writing.

Parts of the sentence:

• saya is polite/neutral for I
• malu, karena, belum, membalas pesan itu are all standard

In very casual conversation, someone might shorten it, for example:

• Aku malu karena belum bales pesan itu.

That version is more informal because:

• aku is more casual than saya
• bales is a colloquial form of balas/membalas

But the original sentence is perfectly standard and natural.