Sabai 
Grammar
Thai grammar, made clear.
No conjugation, no plurals, no gendered nouns, no cases, no articles. Verbs never change shape. What is left is word order and a handful of small words that do the work tenses do in English.
19 topics that cover the whole system
Each one is a chapter in the app, with drills that build the sentence rather than translate it.
Word Order (SVO)
Thai sentences follow Subject-Verb-Object, like English. Words never change form for tense, number, or person.
Polite Particles ครับ / ค่ะ
khrap and kha sit at the end of a sentence and carry almost all of Thai politeness. Which one you use depends on your gender, not the listener's.
Pronouns and Dropping the Subject
Thai has many pronouns chosen by age, status and gender, and leaves them out entirely whenever context makes them obvious.
Classifiers in a Sentence
Counting anything in Thai needs a classifier, and it sits after the number: noun, number, classifier.
Yes/No Questions with ไหม
Add mai to the end of a statement and it becomes a yes/no question. Answer by repeating the verb, not with a word for yes.
Confirming with ใช่ไหม / หรือ
chai mai checks something you already believe; rue offers an alternative. Both are tag questions, and they take different answers.
Question Words
Thai question words sit where the answer would sit, so the sentence keeps its normal shape.
Negation with ไม่
mai in front of a verb or adjective makes it negative. Where it sits relative to other words changes what is being denied.
Time and Tense Markers
Thai verbs never change. Time comes from small marker words and from ordinary time expressions.
Possession with ของ
khong links owner to owned, in the order thing-of-owner, and it is dropped whenever the relationship is obvious.
Comparatives and Superlatives
kwa after an adjective makes a comparison; thii sut makes a superlative. Neither changes the adjective itself.
Softeners นะ / สิ / ด้วย
Small end particles carry the mood of a Thai sentence: friendly, insistent, pleading or shared.
Conditionals with ถ้า...ก็
tha marks the condition and ko introduces the result. Both are often dropped once the meaning is clear.
Passive Voice with ถูก / โดน
Thai marks the passive only when something bad happened. Otherwise it simply reorders the sentence.
Causatives with ให้ / ทำให้
hai makes someone do something or gives something to someone; tham hai says one thing caused another.
Relative Clauses with ที่ / ซึ่ง
thii introduces a clause that describes the noun before it, and it does the work of who, which and that all at once.
Serial Verb Constructions
Thai strings verbs together with nothing between them, and the order of the string is the order of events.
Spoken vs. Written Register
Written Thai uses different words, fuller sentences and no particles. Knowing which register you are in stops you sounding like a sign.
The Verbs You Use Every Day
Twenty verbs cover most of what you will ever want to say. None of them change form, so learning the word is learning every tense of it.
You build the sentence, you do not pick it from four options.
Grammar drills hand you the words and ask for the order: classifier in the right place, particle at the end, negation before the verb. Getting the order wrong tells you which rule you missed, not just that you were wrong.
There are 19 exercise formats in the app and five of them are grammar-specific. Grammar is free here and free in the app.
Grammar drills are in the app
Same app, same price: nothing.
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