Khmer grammar, step by step
A guided tour through Khmer grammar with glossed examples that show how each piece of a sentence fits together.
Grammar Walkthrough
Discover how the language works through examples
Khmer verbs never change form — no conjugation for person, tense, or gender — and instead a small set of particles placed before or after the verb does all the work of expressing when and how actions happen.
SVO: subject comes first
SVO word orderLook at each sentence: where is the subject, where is the verb, and where is the object? Is the order the same across all three examples?
Khmer follows Subject–Verb–Object order, the same neutral pattern as English. This order stays fixed in statements, questions, and negative sentences — there is no inversion.
Verbs never change form
no verb conjugation"និយាយ" (niyaay, speak) appears identically in every sentence regardless of who is speaking or when the action happens. What does Khmer use instead of verb endings to say when something happens?
Khmer verbs do not conjugate for person, number, tense, or gender. The verb stem is always the same. Particles placed before or after the verb do all the work of expressing past, present, future, and ongoing action.
កំពុង: happening right now
progressive particle"ខ្ញុំ កំពុង និយាយ" — a particle has appeared before the verb. Where exactly does "កំពុង" (kompung) go, and what does it add to the meaning?
"កំពុង" (kompung) comes immediately before the verb and marks an action that is happening at this very moment. Remove it and the sentence becomes a habitual statement; add it and the action is specifically ongoing right now.
បាន: action already done
completed aspect"ខ្ញុំ បាន និយាយ" — compare this with "ខ្ញុំ និយាយ". The particle "បាន" (baan) appears before the verb. What does it signal about the timing of the action?
"បាន" (baan) before a verb marks a completed action — something that happened in the past or has been accomplished. It is the closest Khmer has to a past tense marker, though it is really an aspect marker for completion.
រួច: finished and done
completive particle"ញ៉ាំ រួច" — unlike "បាន", this particle comes after the verb, not before. What does its position after the verb signal?
"រួច" (ruəch, "finished") comes after the verb and emphasizes that the action is thoroughly completed — "done and over with". It can combine with "បាន" before the verb for an emphatic past completion.
Modals: must, can, should
modal particles| Modal | Romanization | Meaning | Example |
|---|---|---|---|
| ត្រូវ | trəw | must / have to | ខ្ញុំ ត្រូវ និយាយ |
| អាច | aach | can / be able to | ខ្ញុំ អាច និយាយ |
| គួរ | kuər | should / ought to | ខ្ញុំ គួរ និយាយ |
| ចង់ | caŋ | want to | ខ្ញុំ ចង់ និយាយ |
| ហៅ | hav | let / allow | ហៅ គាត់ និយាយ |
"ត្រូវ", "អាច", and "គួរ" each appear before the main verb and add a layer of necessity, ability, or advice. The main verb itself never changes. What does each modal contribute?
Modal particles come before the verb stem and modify its meaning. "ត្រូវ" (trəw) = must/have to, "អាច" (aach) = can/be able to, "គួរ" (kuər) = should/ought to. The verb they modify stays in its bare form.
Negation: មិន…ទេ wraps the verb
negation"ខ្ញុំ មិន និយាយ ទេ" — negation uses two pieces: one before the verb and one at the very end of the sentence. What happens if you remove either piece?
Khmer negation is a two-part circumfix: "មិន" (mɨn) goes immediately before the verb and "ទេ" (tee) goes at the end of the sentence. Both parts are needed for standard negation. Removing "ទេ" makes the negation sound incomplete or emphatic.
Questions: ឬ and wh-words
questions| Question word | Romanization | Meaning | Example |
|---|---|---|---|
| អ្នកណា | neak naa | who | អ្នកណា ចេះ ខ្មែរ? |
| អ្វី | avəy | what | គាត់ ញ៉ាំ អ្វី? |
| ណា | naa | where | គាត់ ទៅ ណា? |
| ពេលណា | peel naa | when | គាត់ ទៅ ពេលណា? |
| ហេតុអ្វី | haet avəy | why | ហេតុអ្វី គាត់ ចេះ ខ្មែរ? |
| ម៉េច | məc | how | គាត់ ចេះ ខ្មែរ ម៉េច? |
"ខ្ញុំ និយាយ ភាសាខ្មែរ ឬ?" — the question particle appears at the very end of the sentence. For wh-questions, where does the question word sit?
"ឬ" (rɨɨ, "or?") at the end of a statement turns it into a yes/no question. Wh-question words (who, what, where, when, why, how) stay in the same position they would occupy as answers — they do not move to the front of the sentence.
Demonstratives: នេះ and នោះ
demonstratives"ប្រជាជន នេះ" (this person) and "ប្រជាជន នោះ" (that person) — the demonstrative comes after the noun. What does each form signal, and how does it function like a definite article?
Khmer has no definite article "the". Instead, the demonstratives "នេះ" (nih, this/these — near) and "នោះ" (nuh, that/those — far) follow the noun and make it specific. A bare noun without any modifier is indefinite.
Numeral classifiers: counting needs a helper
numeral classifiers| Classifier | Romanization | Used for | Example |
|---|---|---|---|
| នាក់ | nak | people/humans | មនុស្ស ២ នាក់ (two people) |
| ក្បាល | kbal | animals (lit. "head") | ឆ្កែ ៣ ក្បាល (three dogs) |
| គ្រាប់ | krab | round/small objects | ផ្លែប៉ោម ៤ គ្រាប់ (four apples) |
| ខាង | khaŋ | buildings | ផ្ទះ ១ ខាង (one house) |
| ដើម | daem | trees/plants | ដើមឈើ ២ ដើម (two trees) |
| ក្តារ | kdaa | flat objects/books | សៀវភៅ ១ ក្តារ (one book) |
You cannot say a number directly next to a noun in Khmer. "មនុស្ស បី" (three people) is grammatically incomplete. A classifier word must come between them. What determines which classifier to use?
Khmer requires a classifier between a numeral and the noun it counts. The classifier is chosen based on the category of the noun — humans, animals, round objects, flat objects, buildings, and so on. There is no single general classifier.
Prepositions come before nouns
prepositions| Preposition | Romanization | Meaning | Example |
|---|---|---|---|
| នៅ | nɨv | at / located at | នៅ ផ្ទះ (at home) |
| ក្នុង | knong | in / inside | ក្នុង ថ្នាក់ (in class) |
| ពី | pii | from | ពី ភ្នំពេញ (from Phnom Penh) |
| ទៅ | tɨv | to / toward | ទៅ សាលា (to school) |
| ជាមួយ | ciə muəy | with | ជាមួយ គ្រូ (with teacher) |
| លើ | ləə | on / upon | លើ តុ (on the table) |
"នៅ ផ្ទះ" (at home) and "ក្នុង ថ្នាក់" (in class) — the location word comes before the noun, not after. How does this compare to postpositional languages?
Khmer uses prepositions — they come before the noun, not after it. Common ones are "នៅ" (nɨv, at/in/located at), "ក្នុង" (knong, inside/in), "ពី" (pii, from), and "ទៅ" (tɨv, toward/to).
Possession: របស់ (robah)
possession"សៀវភៅ របស់ ខ្ញុំ" (my book) — the possessor appears after the possessed noun. The word "របស់" (robah) sits between them. What does robah contribute?
"របស់" (robah) means "of / belonging to" and is placed between the possessed noun and the possessor. It is the standard way to show ownership. Pronouns follow robah directly.
Adjectives follow the noun
postpositive adjectives"ផ្ទះ ធំ" (big house) — the adjective comes after the noun it describes, not before it. Is this also true when there are multiple adjectives?
Khmer adjectives always follow the noun they modify. Multiple adjectives also all come after the noun in sequence. Verbs used as stative predicates follow the subject directly without a linking verb.
Serial verbs: ឱ្យ as give/for
serial verb constructions"ខ្ញុំ ឱ្យ គាត់ ដឹង" — two verbs appear in sequence with no conjunction between them. "ឱ្យ" (aoy) means "give" as a standalone verb, but here it does something different. What role does it play?
Khmer uses serial verb constructions — chains of verbs without conjunctions. "ឱ្យ" (aoy, give) is extremely versatile: as the second verb in a chain it means "for the benefit of someone" (benefactive), and as the first verb it marks the direct causative.
Relative clauses: ដែល (dael)
relative clauses"មនុស្ស ដែល និយាយ ខ្មែរ" — the relative clause follows the noun and is introduced by "ដែល" (dael). Where does the relative clause go in relation to the noun it modifies?
"ដែល" (dael, "which/who/that") introduces a relative clause that follows the noun it modifies. The relative clause has normal SVO word order. "ដែល" can be dropped in casual speech, leaving the relative clause directly after the noun.
The full picture
putting it togetherHow many patterns from earlier steps can you spot? Look for: SVO order, aspect particles, negation circumfix, classifier, robah possession, ដែល relative clause.
Khmer grammar is built on analytic stacking: one verb stem, surrounded by preverbal aspect particles and postverbal completive markers, with classifiers for counting and ដែល for relatives. The verb stem itself never changes.