The Past Marker 'laew' (Already)
Add `laew` after a verb to signal that an action is finished, just like saying 'already'.
- • Place `laew` after the verb to indicate completion...
- • Thai verbs never change form regardless of time.
Browse the grammar system by level and category, then open clear explanations with practical examples.
Add `laew` after a verb to signal that an action is finished, just like saying 'already'.
Use `keuy` before a verb to describe an experience you have had in the past.
Use `dai` after a verb to confirm you successfully completed an action or managed to do it.
Thai grammar uses specific time markers instead of verb conjugations to indicate past events.
Add `ja` directly before your verb to express future intentions or actions in Thai.
Use `ตั้งใจจะ` when you want to emphasize that you have truly decided to do something.
In Thai, simply place a time marker at the start or end of your sentence to indicate future events.
Simply place the particle `ja` before any verb to transform your sentence into the predictive future tense.
Simply place 'kwa' after any adjective to instantly turn it into a comparative 'more than' statement.
Add `tee-sud` after any adjective to express that something is the absolute 'most' of its kind.
Use `tao-kan` at the end of your comparison to show that two things are exactly equal.
To say something is not as good as something else, use the pattern: Subject + ไม่ + adjective + เท่า + Comparison Object.
Always place the classifier after the number when quantifying nouns in Thai.
Thai classifiers act as mandatory units for counting, always following the noun and number structure.
Always place the classifier after the noun and before the number to sound fluent in Thai.
Classifier omission is a natural shortcut used in casual Thai, similar to informal English texting abbreviations.
Overview Using `pen` (เป็น) is your first major hurdle in Thai. It means "to be," but not for everything. Think of it as your permanent "identity" tag. You use it for nouns, roles, or defining who som...
The verb `yu` acts as your personal location tag to state where someone or something exists.
Use `keu` (คือ) only when you are defining one noun as another, like an equals sign.
Use `กำลัง` only for physical actions, never for states of being like knowing or loving.
The word `dai` is your universal 'can' in Thai, needing no conjugation or changes based on the subject.
Use 'tong' (ต้อง) before a verb to express an obligation or necessity in Thai.
Adding `dai mai` to the end of your verb turns any action into a polite permission request.
The word `yak` is your go-to Thai term for expressing casual wants and desires in daily life.
Spatial prepositions in Thai act as simple location markers placed directly before the noun you are describing.
Always add `ma` for 'towards me' and `pai` for 'away from me' to clarify your movement.
Always anchor your movement markers to where you are standing right now.
Thai relative location follows a simple [Subject] + [Preposition] + [Reference] structure, making it intuitive once you visualize the space.
Thai frequency adverbs are placed before the verb and do not change based on the subject.
Use `bpkati` before your verb to easily describe habitual actions in Thai.
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:
Move beyond memorized phrases. Understand the rules so you can create original, correct sentences in any situation.
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.
Knowing grammar helps you parse complex sentences, understand nuance, and follow conversations even when speakers use advanced constructions.
Students who study grammar systematically reach fluency faster than those who rely on immersion alone. Structure accelerates learning.
Start with your CEFR level — from A0 Zero Point to C2 Mastery. Not sure? Begin at A0 and progress at your own pace.
Each chapter covers a grammar topic with clear explanations, pattern tables, and real-world example sentences.
Test your understanding with interactive exercises — fill-in-the-blank, multiple choice, sentence building, and translation practice.
Your progress is saved automatically. Complete chapters, unlock new levels, and watch your grammar mastery grow.
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.
Learning multiple languages? Check out our grammar guides for other languages:
We use essential cookies for sign-in, security, and preferences. Optional analytics starts only if you accept.
Add to your home screen for a faster, app-like experience
Fastest option
No past conversations yet.
AI-powered support
Would you like to create a support ticket? A human agent will help you.
You've used your free messages
Sign up for unlimited AI chatAI-powered — answers may not always be accurate