Thai Grammar Hub

Understand Thai Grammar Faster

Browse the grammar system by level and category, then open clear explanations with practical examples.

291 Total Rules
75 Chapters
7 CEFR level
Understand Thai Grammar Faster

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Active filters: CEFR level: B2
B2 Advanced Syntax Verified

Using the Subjunctive 'Hai' (ให้)

The word `hai` is your primary tool for turning a simple wish into an actionable request in Thai.

  • Use `hai` to request or influence someone else's a...
  • Place `hai` before the action you want the person...
10 examples 3 exercises 20 FAQ
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B2 Advanced Syntax Verified

Unreal Conditionals in Thai (ถ้า...คงจะ)

Use `ถ้า` combined with `คงจะ` to clearly signal that you are talking about an imaginary, unreal situation.

  • Use `ถ้า` to start your hypothetical condition.
  • Add `คง` or `คงจะ` to indicate the unreal result.
5 examples 2 exercises 3 FAQ
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B2 Advanced Syntax Verified

Expressing Wishes in Thai (อยากให้)

Use `อยากให้` followed by the target and the action to express a wish for a specific outcome.

  • Use `อยากให้` to express a wish for someone or som...
  • Thai does not change verb tense for wishes like En...
5 examples 1 exercises 1 FAQ
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B2 Honorifics & Register Verified

Royal Vocabulary (Rachasap): Talking to Royalty

Royal vocabulary (Rachasap) is a specialized register for royalty, not for everyday Thai communication.

  • Used exclusively for royalty and high-ranking monk...
  • Replaces common verbs/nouns with specialized vocab...
10 examples 2 exercises 20 FAQ
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B2 Honorifics & Register Verified

Thai Politeness Particles (khrap/kha)

Using `khrap` and `kha` acts as a social lubricant that shows respect and establishes a polite tone in any conversation.

  • Use `khrap` if you identify as male.
  • Use `kha` if you identify as female.
3 examples 1 exercises 1 FAQ
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B2 Honorifics & Register Verified

Polite Thai Particles (ครับ/ค่ะ)

Adding 'krap' or 'ka' to the end of your sentences is the easiest way to sound respectful in Thai.

  • Use 'krap' if you identify as male.
  • Use 'ka' if you identify as female.
5 examples 2 exercises 1 FAQ
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B2 Advanced Syntax Verified

Thai Topic-Comment Structure

Thai syntax prioritizes the 'topic' at the start of the sentence to set the context for the following comment.

  • Place the topic at the start of the sentence for e...
  • The comment follows the topic to provide more info...
4 examples 2 exercises 2 FAQ
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B2 Advanced Syntax Verified

Emphatic Fronting in Thai

Emphatic fronting moves an object to the sentence start with a particle to highlight it.

  • Move the object to the front for emphasis.
  • Add a particle like 'na' to mark the shifted topic...
3 examples 2 exercises 2 FAQ
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B2 Advanced Syntax Verified

Thai Passive Voice (ถูก/โดน)

Use `ถูก` for formal passive statements and `โดน` for casual, negative experiences.

  • Use `ถูก` (thùuk) for formal or neutral passive ev...
  • Use `โดน` (doon) for casual, usually negative, exp...
6 examples 2 exercises 2 FAQ
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B2 Compound Verbs Verified

Serial Verb Constructions (Stacking Verbs)

Thai serial verb constructions allow you to string actions together seamlessly without needing connecting words like 'to' or 'and'.

  • Stack verbs directly without using 'and' or 'to'.
  • First verb sets the motion, subsequent verbs defin...
10 examples 2 exercises 5 FAQ
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B2 Compound Verbs Verified

Thai Compound Verbs (Directional Suffixes)

Adding directional verbs like `ไป` and `มา` to main verbs makes your Thai sound natural and precise.

  • Compound verbs add directional precision to main a...
  • Structure is Main Verb + Directional Verb + Moveme...
10 examples 3 exercises 20 FAQ
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B2 Discourse & Pragmatics Verified

Thai Discourse Particles (นะ, สิ, หรอก)

Thai discourse markers are essential, emotion-carrying particles that transform your speech from robotic to natural and conversational.

  • Discourse markers change the tone, not the meaning...
  • They act like emotional punctuation for your sente...
10 examples 3 exercises 18 FAQ
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B2 Discourse & Pragmatics Verified

Thai Transition Markers: Connecting Your Ideas

Transition markers act as signposts that guide your listener through your logic and keep your sentences coherent.

  • Transition markers connect ideas for better flow.
  • Place markers at the beginning of the second claus...
10 examples 3 exercises 20 FAQ
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B2 Discourse & Pragmatics Verified

Mastering Thai Pragmatic Particles (na, si, kha)

Thai pragmatic particles dictate the social mood and intent of your speech without changing the core meaning.

  • Pragmatic particles add emotional tone to sentence...
  • They act like vocal emojis in spoken Thai.
7 examples 2 exercises 2 FAQ
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B2 Negation Verified

Past Negation: 'Mai-dai'

Use `mai-dai` before the verb to express that an action didn't happen or wasn't possible.

  • Use `mai-dai` to negate past actions or failed att...
  • Place `mai-dai` directly before the verb.
10 examples 3 exercises 20 FAQ
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B2 Negation Verified

Using Litotes in Thai (Softening your speech)

Litotes in Thai is a strategic tool to soften your language by negating the opposite of your intended meaning.

  • Use 'ไม่' + opposite adjective to soften your tone...
  • Perfect for giving polite feedback or avoiding dir...
10 examples 3 exercises 20 FAQ
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B2 Advanced Syntax Verified

Mastering Thai Adverbial Clauses

Adverbial clauses in Thai act as flexible connectors that define the timing, cause, or condition of your main sentence.

  • Connects main ideas with context using conjunction...
  • Thai adverbial clauses are flexible and follow sim...
5 examples 2 exercises 3 FAQ
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B2 Advanced Syntax Verified

Simultaneous Actions in Thai (ขณะที่)

Use `ขณะที่` to link two ongoing actions happening at the same time in your daily Thai conversations.

  • Use `ขณะที่` to connect two simultaneous actions.
  • It translates directly to the English word 'while'...
4 examples 2 exercises 4 FAQ
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B2 Advanced Syntax Verified

Mastering Thai Conditionals (ถ้า)

Use `ถ้า` to start conditional sentences and `ก็` to connect the result, keeping verbs unchanged.

  • Use `ถ้า` (thaa) to introduce the condition clause...
  • Place `ก็` (gor) in the result clause for better f...
5 examples 3 exercises 20 FAQ
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B2 Advanced Syntax Verified

Clause Integration

The particle `ที่` is your essential tool for turning a simple noun into a detailed, descriptive phrase.

  • Use `ที่` to connect a noun to a modifying clause.
  • It acts like 'that', 'which', or 'who' in English.
5 examples 1 exercises
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Why Learn Thai Grammar?

Grammar is the foundation of language fluency. Without understanding grammar patterns, you can memorize vocabulary but struggle to form correct sentences. Here's why structured grammar study matters:

Build Accurate Sentences

Move beyond memorized phrases. Understand the rules so you can create original, correct sentences in any situation.

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Grammar is tested in every major language exam — IELTS, DELE, DELF, JLPT, HSK, TOPIK, and more. Our CEFR-aligned curriculum maps directly to exam requirements.

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Knowing grammar helps you parse complex sentences, understand nuance, and follow conversations even when speakers use advanced constructions.

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How Our Thai Grammar Course Works

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Start with your CEFR level — from A0 Zero Point to C2 Mastery. Not sure? Begin at A0 and progress at your own pace.

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Each chapter covers a grammar topic with clear explanations, pattern tables, and real-world example sentences.

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Test your understanding with interactive exercises — fill-in-the-blank, multiple choice, sentence building, and translation practice.

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Frequently Asked Questions About Thai Grammar

SubLearn covers 291 Thai grammar rules organized across 7 CEFR proficiency levels (from A0 to C2), spanning 75 structured chapters. Each rule includes clear explanations, real-world examples, and interactive practice exercises.

Our Thai grammar curriculum covers CEFR levels from A0 to C2. Each level is designed to match your current proficiency — beginners start with basic sentence patterns at A1, while advanced learners tackle nuanced structures at C1-C2.

Yes! All Thai grammar rules, explanations, and examples are completely free to access. You can browse the full curriculum, read detailed explanations, and practice with exercises at no cost.

Grammar is organized into 75 thematic chapters following the CEFR framework. Each chapter groups related rules together — for example, verb tenses, sentence structure, or particles — so you can learn related concepts in a logical sequence.

Yes! Create a free account to track which grammar rules you've studied, see your progress across all CEFR levels, and pick up exactly where you left off. Your learning progress syncs across devices.