harus + Verb
Obligation with Harus
harus + verb is the standard way to say 'must' or 'have to' in Indonesian. It is used for requirements and obligations.
How It Works
The word harus is a modality auxiliary used to express strong obligation.
1. Placement and Usage:
It always appears before the word it modifies. While most commonly used with verbs (Saya harus pergi - I must go), it can also modify adjectives to express a required state (Kamu harus kuat - You must be strong).
2. Synonyms and Register:
In daily conversation, you may hear mesti, which is interchangeable with harus. For formal, legal, or religious requirements, the word wajib is used to indicate a mandatory obligation.
3. Must vs. Should:
To express a recommendation or expected obligation ('should') rather than a strict requirement ('must'), use seharusnya.
4. Scope of Meaning:
This lesson focuses on harus for requirements and necessity. For a confident prediction such as It must be raining, a clear choice is pasti. Do not infer that every use of harus has the same interpretation; the intended necessity or judgment depends on context.
5. Negation (Lack of Obligation):
To say 'don't have to', tidak harus is grammatical in ordinary conversation as well as formal writing. Other common choices are tidak usah or tidak perlu (not necessary). To express prohibition ('must not'), use jangan.
Examples (6)
- Kamu harus belajar untuk ujian besok.
You must study for the exam tomorrow.
Word by Word: You must study for exam tomorrow.
A standard use of 'harus' to express a necessary action for a student.
- Kita harus pergi sekarang supaya tidak terlambat.
We have to go now so we aren't late.
Word by Word: We must go now so that not late.
Shows 'harus' used for situational necessity.
- Kamu harus sabar menghadapi anak-anak.
You must be patient when dealing with children.
Word by Word: You must patient face children.
Demonstrates 'harus' modifying an adjective to express a required state.
- Setiap pengendara motor wajib memakai helm.
Every motorcyclist is required to wear a helmet.
Word by Word: Every driver motor mandatory wear helmet.
Uses wajib for a formal legal obligation. Its force comes from the rule and context, not a universal scale on which wajib always outranks harus.
- Kamu tidak perlu membawa makanan ke pesta.
You don't have to bring food to the party.
Word by Word: You not need bring food to party.
Tidak perlu means not necessary. Tidak usah and tidak harus are also common ways to express lack of obligation, with wording chosen to fit the context.
- Saya harus punya paspor untuk ke luar negeri.
I must have a passport to go abroad.
Word by Word: I must have passport for to outside country.
Note that 'harus' is followed by the verb 'punya' (to have/possess).
Common Mistakes
Using 'harus' directly with a noun.
Saya harus uang.Saya harus punya uang.In Indonesian, 'harus' is an auxiliary for verbs. You cannot say 'I must money'; you must say 'I must HAVE money' (harus punya) or use 'perlu' (need).
Using an ambiguous requirement when you intend a confident deduction.
Dia harus lelah.Dia pasti lelah.Dia pasti lelah clearly means that the speaker is sure the person is tired. Dia harus lelah can suggest a requirement to be tired, an odd reading here. Choose pasti for the intended deduction instead of mechanically translating English must.
How It Connects
Learn This First
To use 'harus' (must/have to), you need to understand the basic Indonesian sentence structure where the auxiliary verb is placed directly before the main verb. Since Indonesian verbs do not change based on the subject or tense, 'harus' is simply inserted into the standard SVO pattern.
- Verbs do not agree with the subject
Learners must understand that 'harus' and the following verb do not change form regardless of the subject.
Level 1 - Verbs do not change for tense
Learners should be aware that 'harus' functions as a modal without requiring any tense-based conjugation of the main verb.
Level 1
Related Patterns
- perlu + VerbNeed with Perlu
'Perlu' means 'need to' and is a softer alternative to 'harus', often used to express 'don't have to' when negated.
Level 1 - pastiStrong Certainty with Pasti
While 'harus' is for obligation, 'pasti' is used for the logical 'must' (certainty).
Level 3 - seharusnyaExpected Obligation with Seharusnya
This is a derivative of 'harus' used to mean 'should' or 'supposed to' (expected obligation).
Level 3 - janganNegative Commands with Jangan
While 'tidak perlu' means 'don't have to', 'jangan' is the standard way to say 'must not' or 'don't'.
Level 1 - wajibBinding Obligation with Wajib
'Wajib' is a stronger synonym for 'harus' used for legal, religious, or formal binding obligations.
Level 6
Learn Next
Patterns that build on this one.