Complex Modality
Grammar Rule in 30 Seconds
Indonesian modality uses auxiliary words like 'bisa', 'harus', and 'akan' to express ability, obligation, and intent without changing the main verb.
- Modals always precede the main verb: 'Saya bisa makan' (I can eat).
- Negation goes before the modal: 'Saya tidak bisa makan' (I cannot eat).
- Modals do not conjugate for person or tense: 'Dia harus pergi' (He must go).
Meanings
Modality in Indonesian expresses the speaker's attitude toward the action, such as necessity, possibility, or permission.
Ability
Expressing capability or skill.
“Dia bisa berenang.”
“Saya mampu mengerjakan ini.”
Obligation
Expressing necessity or duty.
“Kita harus pergi sekarang.”
“Anda wajib memakai masker.”
Intent/Future
Expressing plans or future actions.
“Saya akan datang.”
“Dia hendak pulang.”
Modal Verb Structure
| Subject | Negation | Modal | Verb |
|---|---|---|---|
| Saya | - | bisa | makan |
| Dia | tidak | harus | pergi |
| Kami | - | akan | datang |
| Anda | tidak | boleh | masuk |
| Mereka | - | dapat | bekerja |
| Kita | tidak | perlu | takut |
Reference Table
| Form | Structure | Example |
|---|---|---|
| Affirmative | Sub + Modal + Verb | Saya bisa lari |
| Negative | Sub + Tidak + Modal + Verb | Saya tidak bisa lari |
| Interrogative | Modal + Sub + Verb + kah? | Bisakah kamu lari? |
| Permission | Sub + Boleh + Verb | Kamu boleh makan |
| Obligation | Sub + Harus + Verb | Kamu harus makan |
| Future | Sub + Akan + Verb | Kamu akan makan |
Spectre de formalité
Saya dapat pergi. (General)
Saya bisa pergi. (General)
Gue bisa pergi. (General)
Bisa lah gue pergi. (General)
Modal Categories
Ability
- bisa can
- dapat able to
Obligation
- harus must
- wajib obligatory
Intent
- akan will
- mau want
Examples by Level
Saya bisa lari.
I can run.
Dia harus makan.
He must eat.
Kamu mau pergi?
Do you want to go?
Kami tidak bisa datang.
We cannot come.
Apakah Anda bisa membantu saya?
Can you help me?
Kita harus belajar bahasa Indonesia.
We must learn Indonesian.
Dia tidak mau bicara.
He does not want to talk.
Boleh saya duduk di sini?
May I sit here?
Saya akan menyelesaikan tugas ini.
I will finish this task.
Dia hendak pergi ke Jakarta.
He intends to go to Jakarta.
Kamu tidak perlu khawatir.
You don't need to worry.
Mereka dapat mengerjakan soal itu.
They can do that problem.
Pemerintah wajib melindungi warga.
The government must protect citizens.
Dia bakal datang nanti malam.
He will come tonight.
Kita mesti berhati-hati.
We must be careful.
Apakah Anda diperbolehkan masuk?
Are you allowed to enter?
Hendaknya kita saling menghargai.
We should respect each other.
Dia seyogianya datang lebih awal.
He should ideally come earlier.
Bukanlah saya yang harus memutuskan.
It is not I who must decide.
Dapatkah kiranya Anda membantu?
Could you perhaps help?
Tiada seorang pun yang boleh membantah.
No one is allowed to object.
Seyogianya hal ini dipertimbangkan.
This should ideally be considered.
Ia hendaklah segera melapor.
He should report immediately.
Mustahil dia bisa melakukannya.
It is impossible he can do it.
Easily Confused
Learners mix up ability and permission.
Both refer to future intent.
Both imply necessity.
Erreurs courantes
Saya bisa makannya.
Saya bisa makan.
Saya harusnya pergi.
Saya harus pergi.
Bisa saya makan?
Bolehkah saya makan?
Saya tidak bisa makannya.
Saya tidak bisa makan.
Dia mau-nya pergi.
Dia mau pergi.
Saya akan pergi-nya.
Saya akan pergi.
Kamu tidak harus pergi.
Kamu tidak perlu pergi.
Dia dapatnya melakukan itu.
Dia dapat melakukan itu.
Saya hendak-nya pulang.
Saya hendak pulang.
Wajibnya kita patuh.
Kita wajib patuh.
Seyogianya dia datang.
Seyogianya dia datang.
Mustahil dia bisa pergi.
Mustahil dia bisa pergi.
Sentence Patterns
Saya ___ ___ hari ini.
Apakah kamu ___ ___ besok?
Kita tidak ___ ___ di sini.
___ ___ Anda membantu saya?
Real World Usage
Gue bakal telat.
Saya dapat berkontribusi.
Anda harus memilih menu.
Bisa saya pesan tiket?
Harus coba ini!
Kami wajib menginformasikan.
Keep it simple
Don't conjugate
Use 'dapat' for formal
Casual 'bakal'
Smart Tips
Replace 'bisa' with 'dapat'.
Replace 'akan' with 'bakal'.
Use 'wajib' instead of 'harus'.
Use 'boleh' instead of 'bisa'.
Prononciation
Stress
Modals are usually unstressed unless emphasized.
Question
Bisa-kah? ↑
Rising intonation for yes/no questions.
Memorize It
Mnemonic
Remember 'B-H-A': Bisa, Harus, Akan. The Big Three of Indonesian Modals.
Visual Association
Imagine a train where the engine is the Modal and the carriages are the Verbs. The engine pulls the carriage, but the carriage never changes shape.
Rhyme
Modal di depan, kata kerja tetap, bicara bahasa, jadi mantap.
Story
Budi 'bisa' (can) fly. He 'harus' (must) wear a cape. He 'akan' (will) save the day.
Word Web
Défi
Write 5 sentences using a different modal for each, describing your daily routine.
Notes culturelles
People often use 'bakal' instead of 'akan' in casual speech.
Use 'dapat' and 'wajib' to sound professional.
Sometimes 'mesti' is used for 'harus'.
Indonesian modals are largely derived from Austronesian roots, though some like 'perlu' have Persian/Arabic influence.
Conversation Starters
Apa yang bisa kamu lakukan hari ini?
Apakah kamu akan pergi liburan?
Menurutmu, apa yang wajib dilakukan siswa?
Bagaimana pendapatmu tentang aturan ini?
Journal Prompts
Test Yourself
Saya ___ pergi ke pasar.
Which is correct?
Find and fix the mistake:
Dia harusnya pergi.
Saya bisa datang.
Match each item on the left with its pair on the right:
pergi / harus / saya
Which is more formal?
Anda ___ memakai masker.
Score: /8
Exercices pratiques
8 exercisesSaya ___ pergi ke pasar.
Which is correct?
Find and fix the mistake:
Dia harusnya pergi.
Saya bisa datang.
Match: 1. Bisa, 2. Harus, 3. Akan
pergi / harus / saya
Which is more formal?
Anda ___ memakai masker.
Score: /8
FAQ (8)
No, they remain in their base form.
Usually no, it sounds unnatural.
Yes, it is the most common word for ability.
Use it for legal or strong moral obligations.
It is a colloquial contraction of 'akan'.
Add 'kah' to the modal or use rising intonation.
Use 'tidak' for verbs/modals, 'bukan' for nouns.
Yes, but you add a time marker like 'kemarin'.
In Other Languages
Poder/Deber + Infinitive
Spanish conjugates; Indonesian is invariant.
Pouvoir/Devoir + Infinitive
Conjugation vs. Invariance.
Modalverben
Word order (German) vs. Fixed order (Indonesian).
Auxiliary verbs
Suffixes vs. Independent words.
Modal particles
Case marking vs. No marking.
Neng/Yao/Hui
Very similar, but Chinese has different aspect markers.
