A subordinate clause depends on another unit for its role in the larger sentence. An adverbial clause locates a main event in time, reason, condition, purpose, or concession; a complement clause supplies content selected by a verb or noun; a relative clause modifies a noun. These types differ in mobility, scope, and punctuation.
English uses the broad label “dependent clause,” but Indonesian grammar becomes much clearer when you ask what the clause depends on and whether it is an optional setting or a selected part of another expression.
For the wider inventory of linking relations, see clause combining.
Main clause and dependent relation
A main clause can normally stand as an independent assertion.
Manajer mengumumkan keputusan itu.
The manager announced that decision.
Subordinate clauses expand that assertion without necessarily creating another equal discourse step.
Setelah rapat berakhir, manajer mengumumkan keputusan itu.
After the meeting ended, the manager announced that decision.
Manajer mengumumkan keputusan itu karena semua anggota sudah setuju.
The manager announced that decision because all members had agreed.
The main assertion remains manajer mengumumkan keputusan itu. Setelah rapat berakhir supplies time; karena semua anggota sudah setuju supplies reason.
Adverbial clauses: movable settings
Adverbial clauses modify a main event rather than fill an argument position selected by its predicate. Common relations include time, reason, condition, concession, and purpose.
Time
Ketika bel berbunyi, para siswa segera masuk kelas.
When the bell rang, the students immediately entered the classroom.
Para siswa segera masuk kelas ketika bel berbunyi.
The students immediately entered the classroom when the bell rang.
Reason
Karena jalan utama ditutup, kami melewati rute pesisir.
Because the main road was closed, we took the coastal route.
Kami melewati rute pesisir karena jalan utama ditutup.
We took the coastal route because the main road was closed.
Condition
Jika tidak ada keberatan, manajer akan mengumumkan keputusan itu besok.
If there are no objections, the manager will announce the decision tomorrow.
Manajer akan mengumumkan keputusan itu besok jika tidak ada keberatan.
The manager will announce the decision tomorrow if there are no objections.
Concession
Walaupun hujan belum berhenti, pertandingan tetap dilanjutkan.
Although the rain had not stopped, the match continued.
Pertandingan tetap dilanjutkan walaupun hujan belum berhenti.
The match continued although the rain had not stopped.
The initial and final versions show real mobility. Initial placement establishes a frame before the main assertion; final placement often feels more integrated with the predicate or supplies an afterthought explanation.
Purpose clauses with agar/supaya are also adverbial, but their subject interpretation and modality have additional constraints.
Kami menutup jendela agar suara dari jalan tidak masuk.
We closed the window so that noise from the street would not come in.
Agar semua peserta mendengar dengan jelas, panitia menambah dua pengeras suara.
So that all participants could hear clearly, the committee added two loudspeakers.
Commas with adverbial clauses
An initial subordinate adverbial is normally followed by a comma before the main clause.
Sesudah semua formulir diperiksa, petugas membuka pintu keberangkatan.
After all forms were checked, the officer opened the departure gate.
When a short adverbial follows the main clause and is tightly integrated, no comma is normally needed.
Petugas membuka pintu keberangkatan sesudah semua formulir diperiksa.
The officer opened the departure gate after all forms were checked.
A comma can mark a supplementary, corrective, or deliberately detached final clause, but it is not inserted automatically before every Indonesian conjunction. Meaning and placement determine punctuation.
Kami tetap berangkat, walaupun keputusan itu ternyata kurang bijaksana.
We left anyway, although that decision turned out to be unwise. (supplementary concession)
The comma gives the concession an afterthought quality. Without the comma it is more tightly integrated into the event description.
Complement clauses: content selected by a predicate
A complement clause fills a content position required or licensed by a verb, adjective, or noun. It is not a freely movable time or reason setting.
Direktur menjelaskan bahwa jadwal baru berlaku bulan depan.
The director explained that the new schedule takes effect next month.
Kami mengetahui bahwa beberapa berkas belum lengkap.
We know that several files are incomplete.
Mereka berharap agar layanan kereta segera kembali normal.
They hope that train service will soon return to normal.
Kabar bahwa jembatan itu sudah dibuka membuat warga lega.
The news that the bridge had opened made residents relieved.
Bahwa jadwal baru berlaku... supplies what was explained; bahwa beberapa berkas... supplies what is known; agar layanan... supplies the hoped-for outcome; bahwa jembatan... supplies the content of kabar.
These clauses are selected by a host. Moving them to the beginning is possible only as marked topicalization in some formal contexts, not as the neutral mobility seen with ketika or karena.
Bahwa jadwal baru berlaku bulan depan telah dijelaskan oleh direktur.
That the new schedule takes effect next month has been explained by the director. (formal, marked)
The fronted content clause here functions as a nominal subject. It is not simply an initial adverbial and should not be followed by a comma.
Relative clauses: fixed beside a noun
A relative clause depends on a head noun and normally follows it immediately.
Manajer yang memimpin rapat itu mengumumkan keputusan akhir.
The manager who chaired the meeting announced the final decision.
Keputusan yang sudah disepakati akan diumumkan siang ini.
The decision that has been agreed upon will be announced this afternoon.
Kami menghubungi peserta yang alamatnya belum tercatat.
We contacted the participant whose address had not been recorded.
The relative clauses identify manajer, keputusan, and peserta. Moving them to the beginning would separate them from the noun they modify and destroy the neutral structure.
A restrictive relative takes no commas. A supplementary relative about an already identified referent can be parenthetical:
Pak Arman, yang memimpin rapat tadi pagi, sudah kembali ke kantornya.
Mr. Arman, who chaired this morning's meeting, has returned to his office.
This punctuation follows integration, not the presence of yang alone.
One main clause expanded five ways
The baseline manajer mengumumkan keputusan itu can be expanded with each subordinate type:
| Relation | Expansion | Structural role |
|---|---|---|
| time | setelah rapat berakhir | movable adverbial |
| reason | karena semua anggota setuju | movable adverbial |
| condition | jika tidak ada keberatan | movable adverbial |
| content | bahwa jadwal baru berlaku | selected complement |
| relative | yang memimpin rapat itu | noun modifier |
Now compare full sentences:
Setelah rapat berakhir, manajer mengumumkan keputusan itu kepada wartawan.
After the meeting ended, the manager announced the decision to reporters. (time)
Manajer mengumumkan keputusan itu karena semua anggota telah menyetujuinya.
The manager announced the decision because all members had approved it. (reason)
Jika tidak ada keberatan tertulis, manajer akan mengumumkan keputusan itu hari Senin.
If there are no written objections, the manager will announce the decision on Monday. (condition)
Manajer mengumumkan bahwa jadwal baru akan berlaku pada awal bulan.
The manager announced that the new schedule would take effect at the start of the month. (content)
Manajer yang memimpin rapat itu mengumumkan keputusan yang sudah disepakati.
The manager who chaired the meeting announced the decision that had been agreed upon. (relative clauses)
Finally, several types can occur together as long as each boundary remains clear:
Setelah rapat berakhir, manajer yang memimpin pembahasan mengumumkan bahwa jadwal baru akan berlaku jika tidak ada keberatan.
After the meeting ended, the manager who chaired the discussion announced that the new schedule would take effect if there were no objections.
The outer time clause modifies mengumumkan; the relative modifies manajer; the bahwa clause supplies announced content; the final jika clause sets a condition within that content.
Scope follows attachment
The position of a subordinate clause affects which proposition it modifies.
Rina tidak datang karena hujan deras.
Rina did not come because of the heavy rain.
This normally gives heavy rain as the reason for not coming. Contrast corrective scope:
Rina datang bukan karena diminta, melainkan karena ingin membantu.
Rina came not because she was asked, but because she wanted to help.
Karena hujan deras, Rina memutuskan bahwa acara harus dipindahkan.
Because of the heavy rain, Rina decided that the event had to be moved.
The initial reason most naturally explains memutuskan, while the complement expresses the content of the decision. If the rain is part of the reported content, place it inside that complement:
Rina menjelaskan bahwa acara dipindahkan karena hujan deras.
Rina explained that the event was moved because of the heavy rain.
Subordination versus coordination
Coordination presents two units of equal status; subordination makes one unit serve inside another.
Hujan turun dan kami menutup semua jendela.
Rain fell, and we closed all the windows.
Kami menutup semua jendela karena hujan turun.
We closed all the windows because it was raining.
The coordinated version reports two events. The subordinate version explicitly interprets one as the reason for the other. Choosing a conjunction is therefore choosing a grammatical relationship, not merely a transition word.
Common Mistakes
Treating an initial subordinate clause as the main clause
❌ Dalam “Ketika rapat selesai, semua peserta pulang”, ketika rapat selesai adalah klausa utama.
Incorrect analysis — the ketika clause is a time adjunct.
✅ Dalam kalimat itu, semua peserta pulang adalah klausa utama.
In that sentence, all participants went home is the main clause.
Omitting the comma after an initial adverbial
❌ Karena bus terakhir sudah berangkat kami memesan taksi.
Incorrect punctuation — close the initial reason clause with a comma.
✅ Karena bus terakhir sudah berangkat, kami memesan taksi.
Because the last bus had left, we ordered a taxi.
Adding a comma before every final conjunction
❌ Panitia memindahkan acara, karena aula utama bocor.
Incorrect neutral punctuation — the final reason clause is tightly integrated.
✅ Panitia memindahkan acara karena aula utama bocor.
The committee moved the event because the main hall was leaking.
Separating bahwa from its selected content
❌ Direktur menjelaskan bahwa, jadwal baru berlaku besok.
Incorrect punctuation — no comma separates bahwa from its complement clause.
✅ Direktur menjelaskan bahwa jadwal baru berlaku besok.
The director explained that the new schedule takes effect tomorrow.
Copying commas around a restrictive relative
❌ Peserta, yang membawa undangan, boleh masuk lebih dahulu.
Incorrect for the intended restrictive meaning; the commas make the relative supplementary.
✅ Peserta yang membawa undangan boleh masuk lebih dahulu.
Participants carrying invitations may enter first.
Key Takeaways
- Adverbial clauses supply movable settings such as time, reason, condition, concession, and purpose.
- Complement clauses provide content selected by a predicate or noun and are less freely movable.
- Relative clauses remain adjacent to the noun they modify.
- Initial adverbials normally take a following comma; final integrated ones normally do not.
- Scope depends on which clause a subordinate unit attaches to, not merely which conjunction appears.
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