Semua wakil bersetuju sebulat suara.

A natural word-by-word breakdown is:

• semua = all
• wakil = representative / delegate
• bersetuju = agree / be in agreement
• sebulat suara = unanimously / with one voice

So the whole sentence means All the delegates agreed unanimously.

In Malay, nouns often do not change form for plural the way English nouns do.

So:

• wakil can mean representative or representatives
• semua wakil clearly means all representatives

Malay usually shows plurality through context or words like:

• semua = all
• para = a group of people
• reduplication, e.g. wakil-wakil = representatives

In this sentence, semua already makes it plural, so wakil does not need any extra plural marking.

Because semua modifies the noun phrase wakil.

Malay commonly puts semua before the noun:

• semua wakil = all the representatives
• semua pelajar = all the students
• semua ahli = all the members

So the word order here is normal and natural.

Bersetuju means to agree or to be in agreement.

It comes from setuju, which means agree / agreeable / in agreement, and the prefix ber- helps form a verb.

So:

• setuju = agree / in agreement
• bersetuju = agree

In practice, both setuju and bersetuju can appear, but bersetuju often sounds a bit more formal or written.

Both can be possible in Malay, but they are not always used in exactly the same way.

• Saya setuju. = I agree.
• Semua wakil bersetuju. = All the representatives agreed.

In formal writing or official statements, bersetuju is very common. It can sound slightly more polished or institutional. Since this sentence sounds like something from a meeting, report, or news article, bersetuju fits well.

Sebulat suara is a fixed expression meaning unanimously or with one voice.

You should learn it as a set phrase. It is commonly used in contexts like:

• meetings
• votes
• committees
• official decisions

Examples:

• Mereka memilih ketua itu sebulat suara. = They elected that leader unanimously.
• Usul itu diterima sebulat suara. = The motion was accepted unanimously.

Even if the literal parts may seem unusual, the important thing is that the whole phrase functions as an idiomatic expression meaning unanimously.

Yes, from a strict logical point of view, it is somewhat repetitive.

• semua wakil bersetuju already suggests that all the representatives agreed
• sebulat suara adds extra emphasis: unanimously

But this kind of emphasis is very normal in both Malay and English, especially in formal or official language.

It is similar to English sentences like:

• All delegates agreed unanimously
• The proposal was passed unanimously

So it is not wrong; it is just emphatic and formal.

Malay verbs do not change form for tense the way English verbs do.

So bersetuju can mean:

• agree
• agreed
• are agreeing
• will agree

depending on context.

This sentence is often translated as agreed because it sounds like a completed event, such as the result of a meeting. But without context, Malay itself does not force a past tense reading.

If Malay wants to make time clearer, it can add time words like:

• semalam = yesterday
• tadi = earlier
• akan = will
• sedang = currently

Malay does not use articles like a, an, and the in the same way English does.

So wakil can mean:

• a representative
• the representative
• representatives
• the representatives

The exact meaning comes from context.

In semua wakil, English usually translates it as all the representatives because that sounds natural in English, even though Malay does not include a separate word for the.

Yes, but usually with extra words.

Common patterns include:

• bersetuju dengan = agree with
• bersetuju bahawa = agree that
• bersetuju untuk = agree to / agree to do something

Examples:

• Saya bersetuju dengan anda. = I agree with you.
• Mereka bersetuju bahawa cadangan itu baik. = They agree that the proposal is good.
• Kami bersetuju untuk meneruskan projek itu. = We agreed to continue the project.

In Semua wakil bersetuju sebulat suara, there is no stated object. The sentence simply says that they were in agreement, and sebulat suara tells you the agreement was unanimous.

Because it works like an adverbial phrase describing how they agreed.

So the structure is roughly:

• Semua wakil = subject
• bersetuju = verb
• sebulat suara = adverbial phrase, telling us the manner

This word order is very natural in Malay. Putting sebulat suara after the verb makes the sentence clear and smooth.

Yes, it sounds fairly formal and is the kind of sentence you might see in:

• news reports
• meeting minutes
• government statements
• organizational reports

The clues are:

• wakil = representative / delegate
• bersetuju = a slightly formal choice
• sebulat suara = a formal expression often used in official decisions

In casual speech, someone might say something simpler depending on context, but this sentence is perfectly natural in formal Malay.

Yes, many speakers would understand it, and it can sound natural in everyday usage.

However:

• setuju is common and conversational
• bersetuju often sounds more formal or polished

So:

• Semua wakil setuju sebulat suara = understandable and acceptable
• Semua wakil bersetuju sebulat suara = more formal and report-like

If you are learning standard written Malay, the version with bersetuju is a very good model.