3.4 ber-, di-, ke-, peN-, and Combined Affixes
Key Takeaways
- ber- has three forms: ber- (default), bel- (only before 'ajar' → belajar), and be- (before roots whose first syllable is consonant + -er, e.g. bekerja from kerja).
- di- is the passive prefix and never assimilates: di- + baca → dibaca (not dimaca).
- ke- forms ordinals (ketiga) and, with -an, the 'to undergo' sense (kehilangan, kedinginan).
- peN- forms nouns and follows the same assimilation rule as meN-: penulis (tulis), penyapu (sapu), pembaca (baca), pengarang (arang).
- Combined affixes include ke-...-an (state), peN-...-an (process noun), me-kan (causative/benefactive), me-i (iterative/locative), and ter- (accidental/superlative).
ber-, di-, ke-, peN-, and Combined Affixes
Quick Answer: Indonesian builds verbs, nouns, and modifiers with a small set of prefixes that each have a stable function: ber- attaches to noun/stative roots for "to have/be", di- marks passive voice, ke- forms ordinals and the "to undergo" sense with -an, peN- forms nouns (with the same assimilation as meN-), and se- means "one" or "the same as". Combined affixes — ber-an, ke-an, peN-an, me-kan, me-i, ter- — layer these functions.
ber- (Active Intransitive / "to have")
ber- attaches to noun or stative roots to form intransitive verbs: ber- + lari → berlari (to run), ber- + main → bermain (to play), ber- + diri → berdiri (to stand). It can also convey "to have or use X": bermotor (to ride a motorcycle), bersepatu (to wear shoes).
Two allomorphs to remember:
| Form | Condition | Example |
|---|---|---|
| ber- | default | berlari, bermain, berdiri |
| bel- | only before the root ajar | belajar (to study) |
| be- | before roots whose first syllable is consonant + -er | bekerja (kerja), beperang (perang), becermin (cermin) |
The be- form is the trickiest. The rule: if the root's first syllable has the structure consonant + e + r (e.g. ker-ja, per-ang, cer-min), ber- shortens to be-. Otherwise it stays ber-. Compounds like berpura-pura keep the full ber- because the -er is not in the first syllable of the simple root.
di- (Passive Voice)
di- is the passive prefix. It attaches to a verbal root and is always written as one word: di- + tulis → ditulis (was written), di- + baca → dibaca (was read), di- + pukul → dipukul (was hit). di- never assimilates — even before b, p, c, t, k, s, the form stays di-: dibaca, dipukul, ditulis, disapu. This contrasts sharply with meN- and peN- and is a frequent UKBI trap.
Note: di- as a prefix is written attached; di as a preposition is written separately (Section 3.8 covers this distinction in depth).
ke- (Ordinal and "To Undergo")
ke- has two roles:
- Ordinal numbers: ke- + tiga → ketiga (third), ke- + sepuluh → kesepuluh (tenth), ke- + 21 → ke-21. Always attached and always written as one word.
- "To undergo / to experience" with the suffix -an: ke- + hilang + -an → kehilangan (to lose something), ke- + dingin + -an → kedinginan (to feel cold), ke- + sakit + -an → kesakitan (to be in pain), ke- + haus + -an → kehausan (to be thirsty). This construction expresses involuntary experience of a state.
ke- as a prefix is attached; ke as a preposition ("to, towards") is separate (Section 3.8).
peN- (Noun-Former)
peN- forms nouns referring to the doer of an action. It follows the same assimilation rule as meN- — learn one table, apply it twice.
| Root-initial | peN- allomorph | Example |
|---|---|---|
| Vowel, k, g, h, q | peng- | pengarang (arang), pengumpul (kumpul), penggali (gali) |
| b, p, f, v (p drops) | pem- | pembaca (baca), pemukul (pukul), pemfoto (foto) |
| c, d, j, t, z (t drops) | pen- | pencuri (curi), pendengar (dengar), penari (tari) |
| s (s drops) | peny- | penyapu (sapu), penyiram (siram) |
| l, m, n, r, w, y | pe- | pelihat (lihat — though pemerhati also accepted), pemakan (makan), penikah (nikah), perusak (rusak) |
Note: the noun from lihat is pelihat in conservative PUEBI but pemerhati (with extra -er-) is widely accepted; pemerhati is increasingly the preferred form. UKBI follows the latest PUEBI convention.
se- (One / Same / Whole)
se- means "one", "the same as", or "the whole of":
- "One" with classifiers: sebuah buku (one book), seorang anak (one child), seekor kucing (one cat).
- "The same as": sekelas (in the same class), setinggi (as tall as), seumur (the same age).
- "The whole of": seluruh (entire), se-Indonesia (all of Indonesia).
Combined Affixes
Indonesian builds complex words by stacking prefix + suffix:
| Combination | Function | Example |
|---|---|---|
| ber- + -an | reciprocal / collective | bertemuan; bermainan (to play with) |
| ke- + -an | "to undergo" state | kehilangan, kedinginan, kesedihan |
| peN- + -an | abstract noun / process | penulisan (writing-as-process), pembacaan (reading), pengembangan (development) |
| me- + -kan | causative / benefactive | menuliskan (write for), membuatkan (make for), mengambilkan (take for) |
| me- + -i | iterative / locative | memukuli (hit repeatedly), menarikan (dance with), menghormati (respect) |
| ter- | accidental / superlative | terbaca (accidentally read), terbaik (best), tercepat (fastest) |
| ke- + -i | locative benefactive | kemari (hither), kepadanya (to him/her) |
| ber- + -kan | "with / using" | berdasarkan (based on), berpijak pada — uses pada, no -kan in this idiom |
How to Decompose a Word in Merespons Kaidah
When you see a complex word in a UKBI item, mentally strip from the outside in:
- Identify suffixes (-kan, -i, -an, -lah, -kah, -pun, -nya).
- Identify the prefix (meN-, peN-, ber-, di-, ke-, se-, ter-, per-).
- Find the root — the remaining core.
- Verify the allomorph matches the root-initial sound per the table.
Example: pengembangan. Strip -an → pengembang. Strip peN- → embang? That is not a root. Try peng- + embang — no. The actual root is kembang with k dropping after peng-. So peN- + kembang + -an → pengembangan (development). Recognising the k-drop pattern under peng- is essential.
Common Traps
- Treating di- like meN-: di- + baca is dibaca, no assimilation. di- never changes form.
- Forgetting belajar: ber- + ajar is belajar (the only productive bel- form), not berajar.
- Adding -er- where it does not belong: pemeriksa (inspector, from periksa) is correct; but pemerhati — the -er- insertion here is a recent convention; some still write pelihat.
- Confusing se- and ke-: sebuah (one) vs ketiga (third) — different functions, different prefixes.
Master these affixes and the four core functions (active, passive, noun, ordinal) plus the combined forms cover the vast majority of affixation items in Merespons Kaidah.
Which is the correct noun form of the root tulis using the peN- prefix?
What is the correct prefixed form of ber- + ajar?