Question Formation in Indonesian

In Brief

Indonesian usually asks a question without changing the verb or adding an equivalent of English do, does, or did. Use rising intonation for an everyday yes/no question, add apakah for an explicit or more formal question, or ask for missing information with a question word such as apa “what,” siapa “who,” or di mana “where.”

Overview

Indonesian question formation is relatively direct. A statement such as Kamu tinggal di Jakarta (“You live in Jakarta”) can become Kamu tinggal di Jakarta? (“Do you live in Jakarta?”) through intonation alone. The verb does not conjugate—that is, it does not change form to match the person, number, or tense—and the subject does not have to move.

This matters especially to English-speaking learners. English often rearranges a sentence and inserts an auxiliary verb (a helping verb) to ask Do you work here? Indonesian normally does neither: Kamu bekerja di sini? is literally close to “You work here?” Indonesian also often puts a question word where the answer would naturally go, as in Kamu tinggal di mana? (“Where do you live?”).

At A1, learn the most neutral patterns first: intonation or apakah for yes/no questions, and the core question words for information questions. Later sections explain formal alternatives, the suffix -kah, and word-order choices that add emphasis or suit careful writing.

How It Works

1. Everyday yes/no questions: keep the statement order

A yes/no question asks whether something is true. In ordinary conversation, Indonesian can keep exactly the same word order as a statement. Rising intonation and context signal the question.

Statement	Question	Meaning
Kamu sibuk.	Kamu sibuk?	Are you busy?
Dia sudah makan.	Dia sudah makan?	Has he/she eaten?
Mereka datang besok.	Mereka datang besok?	Are they coming tomorrow?

This pattern also works when there is no verb corresponding to English be. Indonesian commonly says Ini mahal (“This is expensive”), so the question is simply Ini mahal? (“Is this expensive?”).

English tense distinctions do not require a different question structure in Indonesian. Time comes from context or words such as sudah “already,” sedang “currently,” and akan “will.” Compare Dia bekerja? (“Does he/she work?”), Dia sedang bekerja? (“Is he/she working?”), and Dia akan bekerja? (“Will he/she work?”).

2. Explicit yes/no questions with apakah

Put apakah at the beginning of a clause to mark it clearly as a yes/no question:

apakah + ordinary clause + ?

• Apakah kamu berbicara bahasa Indonesia? — Do you speak Indonesian?
• Apakah restoran ini buka? — Is this restaurant open?
• Apakah mereka sudah tiba? — Have they arrived?

Apakah is common in writing, announcements, interviews, questionnaires, and careful or formal speech. It is not inherently more polite; politeness also depends on pronouns, titles, wording, and tone. In relaxed conversation, a question formed by intonation is often more natural.

Do not combine apakah with English-style inversion. Apakah kamu siap? keeps the ordinary order subject + predicate: kamu + siap. A predicate is the part that says something about the subject; here, “ready” says something about “you.”

3. The question suffix -kah

The suffix -kah marks a focused word or phrase as interrogative (question-forming). It is written directly onto the preceding word, not as a separate word:

• Benarkah cerita itu? — Is that story true?
• Bisakah Anda membantu saya? — Can you help me?
• Diakah gurunya? — Is he/she the teacher?

This construction often sounds more formal, deliberate, emphatic, or literary than a conversational question with intonation. The element carrying -kah is normally placed near the beginning because it is the point being questioned. For a beginner, apakah + clause is the safer general-purpose explicit pattern.

You will also see -kah attached to question words: apakah (“what?/whether”), siapakah (“who?”), di manakah (“where?”), and bagaimanakah (“how?”). These forms are especially associated with formal questions, titles, official language, or rhetorical style. Everyday speech usually prefers siapa, di mana, and bagaimana without -kah.

4. Core information questions

An information question asks for something other than yes or no. The question word represents the missing information.

Question word	Basic meaning	Example
apa	what	Kamu membeli apa? — What are you buying?
siapa	who	Itu siapa? — Who is that?
di mana	where	Kamu tinggal di mana? — Where do you live?
kapan	when	Kita berangkat kapan? — When are we leaving?
bagaimana	how; what … like	Bagaimana caranya? — How is it done?
mengapa	why	Mengapa Anda pergi? — Why are you leaving?
kenapa	why; what is wrong	Kenapa kamu sedih? — Why are you sad?

Notice that di mana consists of two words and is written separately. Di is a preposition (a small word expressing a relation such as location), so di mana literally asks “at/in where.” Do not write the question phrase as dimana in standard spelling.

5. Question words can stay in the answer position

In neutral conversation, Indonesian frequently leaves the question word in the same position that the answer would occupy:

• Kamu membeli buku. → Kamu membeli apa?
• Dia tinggal di Bandung. → Dia tinggal di mana?
• Rapat dimulai hari Senin. → Rapat dimulai kapan?

This is sometimes called in-situ question-word placement, meaning “in its original place.” It is not incorrect or childish. It is a normal feature of Indonesian and often sounds natural in speech.

A question word may also come first:

• Di mana kamu tinggal? — Where do you live?
• Kapan rapat dimulai? — When does the meeting start?
• Mengapa Anda memilih tempat ini? — Why did you choose this place?

Fronting the question word can make the information requested immediately clear. It is frequent in writing and planned speech, but it is not required in every question. English strongly favors fronting (Where do you live?); Indonesian comfortably uses both Di mana kamu tinggal? and Kamu tinggal di mana?.

6. Special behavior of apa and siapa

Use apa mainly for things, identities, actions, definitions, or choices:

• Ini apa? — What is this?
• Apa artinya? — What does it mean?
• Kamu mau makan apa? — What do you want to eat?

Use siapa for people:

• Dia siapa? — Who is he/she?
• Siapa yang datang? — Who came/is coming?
• Kamu pergi dengan siapa? — Who are you going with?

When siapa is the person doing the action, yang often connects it to the following description or action: Siapa yang menelepon? (“Who called?”). Here yang introduces the part identifying the unknown person. In short identifying questions, no yang is needed: Itu siapa?

7. Asking “how,” “why,” and related details

Bagaimana asks about manner, condition, or what something is like:

• Bagaimana kabarmu? — How are you?
• Bagaimana cara membukanya? — How do you open it?
• Bagaimana makanannya? — How is the food?/What is the food like?

In casual speech, gimana is a common shortened form of bagaimana. Learn bagaimana first because it is suitable across a wider range of situations.

Both mengapa and kenapa mean “why.” Mengapa is more characteristic of formal writing and careful speech. Kenapa is extremely common in conversation and neutral informal usage. Depending on context, Kenapa? can also mean “What’s wrong?” rather than simply “Why?”

Two other very common A1 question words are berapa “how many/how much” and yang mana “which one”:

• Harganya berapa? — How much is it?
• Kamu punya berapa saudara? — How many siblings do you have?
• Kamu pilih yang mana? — Which one do you choose?

8. Short answers

A positive answer commonly uses ya (“yes”) or repeats the relevant word. A negative answer depends on what is being denied:

• Kamu lapar? — Ya. / Tidak. — Are you hungry? — Yes. / No.
• Dia dokter? — Bukan. — Is he/she a doctor? — No, he/she is not.
• Kamu sudah makan? — Belum. — Have you eaten yet? — Not yet.

Use tidak to negate verbs and adjectives, bukan to reject a noun identity or correct an identification, and belum for “not yet.” English “no” therefore does not always map to one Indonesian word.

Examples in Context

Indonesian	English	Note
Apakah kamu berbicara bahasa Indonesia?	Do you speak Indonesian?	Explicit yes/no question
Kamu bekerja di sini?	Do you work here?	Everyday intonation pattern
Apakah bus ini pergi ke pusat kota?	Does this bus go downtown?	Clear, careful question
Dia sudah pulang?	Has he/she gone home?	sudah supplies the time meaning
Di mana kamu tinggal?	Where do you live?	Question word first
Kamu tinggal di mana?	Where do you live?	Question word in the answer position
Ini apa?	What is this?	Short identification question
Siapa yang mengirim pesan ini?	Who sent this message?	siapa is the unknown person acting
Kita bertemu kapan?	When are we meeting?	Natural conversational order
Bagaimana cara memakai aplikasi ini?	How do you use this app?	Asking about a method
Mengapa Anda belajar bahasa Indonesia?	Why are you learning Indonesian?	Formal or careful wording
Kenapa kamu tertawa?	Why are you laughing?	Common conversational wording
Harganya berapa?	How much is it?	Asking a price
Bisakah Anda mengulanginya?	Could you repeat that?	Formal -kah question

Common Mistakes

Adding English do or does

• Wrong: Do kamu tinggal di sini?
• Right: Kamu tinggal di sini? / Apakah kamu tinggal di sini?
• Why: Indonesian does not insert English do/does to form a question. Keep the ordinary Indonesian clause or introduce it with apakah.

Rearranging the subject as if Indonesian worked like English

• Wrong: Apakah tinggal kamu di Jakarta?
• Right: Apakah kamu tinggal di Jakarta?
• Why: After apakah, retain normal subject–verb order. The question marker does not trigger inversion.

Using apa for a person

• Wrong: Apa yang menelepon? (when asking which person called)
• Right: Siapa yang menelepon?
• Why: Use siapa for people and apa for things, actions, meanings, and other nonhuman information.

Writing di mana as one word

• Wrong: Kamu tinggal dimana?
• Right: Kamu tinggal di mana?
• Why: In standard Indonesian, the locative preposition di is separate from mana. This differs from the prefix di- in forms such as dibuka (“opened”), which is attached.

Overusing apakah in casual conversation

• Awkward in a relaxed exchange: Apakah kamu mau kopi?
• Often more natural: Kamu mau kopi?
• Why: The first sentence is grammatical, but apakah can sound careful or formal where intonation alone would be expected. Use it when clarity or formality is useful.

Treating every negative answer as tidak

• Question: Ini kantor pos? — Is this the post office?
• Less suitable answer: Tidak.
• Better answer: Bukan. — No, it isn’t.
• Why: A rejected noun identity normally takes bukan. Use tidak with verbs and adjectives, and belum for “not yet.”

Usage Notes

Formality and address

The choice between kamu and Anda affects register more directly than the question structure itself. Kamu is common with friends, family, children, and others in an appropriately familiar relationship. Anda is more impersonal or formal and is common in customer-facing language, instructions, and some professional interactions. Indonesian also frequently uses names, kinship terms, or titles instead of either pronoun: Ibu mau minum apa? can politely ask a woman or female customer what she would like to drink.

Spoken shortcuts

Conversation favors intonation questions, question words left near the end, and forms such as kenapa and gimana. Subjects may be omitted when everyone knows who is meant: Mau makan apa? (“What do [you] want to eat?”). Omission is natural, but beginners should first make sure the context clearly supplies the missing person.

Punctuation and pronunciation

A written direct question ends with a question mark. In speech, yes/no questions often have a noticeable rise or other questioning contour, but intonation varies by speaker and context. Information questions do not need exaggerated English-style rising intonation; the question word already identifies them as questions.

Beyond the Basics / Advanced Use

You do not need to master these patterns at A1, but they explain forms you will meet later.

Questions inside larger sentences

Apakah can introduce an embedded question—a question contained inside a larger sentence—where English often uses “whether” or “if”:

• Saya tidak tahu apakah dia datang. — I do not know whether he/she is coming.
• Tolong tanyakan apakah tokonya masih buka. — Please ask whether the shop is still open.

This is not a direct question, so the whole sentence is not necessarily followed by a question mark. In this use, apakah does more than mark intonation: it links the uncertainty to the larger clause.

Question words can behave similarly:

• Saya lupa di mana dia tinggal. — I forgot where he/she lives.
• Kami belum tahu kapan rapat dimulai. — We do not yet know when the meeting starts.

Fronted forms with yang

Formal Indonesian may place a question phrase first and use yang to highlight or identify the requested element:

• Apa yang kamu cari? — What are you looking for?
• Siapa yang bertanggung jawab? — Who is responsible?
• Buku mana yang Anda pilih? — Which book do you choose?

Not every fronted question requires yang: Di mana kamu tinggal? is complete by itself. Learn common patterns as whole phrases rather than inserting yang after every question word.

Rhetorical and echo questions

A rhetorical question is asked for effect rather than to obtain an answer. Formal -kah can contribute to this style: Mungkinkah itu terjadi? (“Could that happen?”). An echo question repeats surprising information: Dia membeli apa? (“He/she bought what?”). Word-final placement is especially useful for echoing the exact detail that surprised the speaker.

Discourse particles

Colloquial questions may contain particles such as sih, dong, or kok, which express attitude rather than basic question type. Apa sih? can sound impatient, curious, or playful; Kok bisa? expresses surprise (“How can that be?”). These particles are highly dependent on tone and relationship, so understand the neutral question patterns before trying to use them.

Practice Tips

1. Transform one sentence three ways. Start with Kamu belajar bahasa Indonesia. Make an intonation question, an apakah question, and an information question: Kamu belajar bahasa Indonesia?, Apakah kamu belajar bahasa Indonesia?, Kamu belajar bahasa apa?
2. Replace the answer, not the whole sentence. Take Saya tinggal di Surabaya and replace di Surabaya with di mana. This builds the natural Indonesian habit: Kamu tinggal di mana?
3. Practice useful question–answer pairs aloud. Include ya, tidak, bukan, and belum. For example: Sudah makan? — Belum. Recording yourself helps you hear whether an intonation-only question sounds distinct from a statement.

Related Concepts

• Prerequisite: Basic Verb Structure — explains why Indonesian verbs keep the same form and how time words work.
• Later development: Discourse Particles — adds conversational nuances with -kah, sih, dong, and kok.