Grammar Rule in 30 Seconds
Use 'khrap' (male) or 'kha' (female) at the end of sentences to turn any statement or request into a polite, soft version.
- Add 'khrap' (male) or 'kha' (female) to the end of any sentence: 'Gin khao khrap' (I am eating).
- Use 'noi' to soften a command: 'Kho nam noi khrap' (May I have some water, please?).
- Use 'dai mai' for polite questions: 'Pai dai mai kha?' (Can we go?).
Meanings
These particles function as social lubricants, transforming direct statements into polite requests or respectful assertions.
Politeness Marker
Indicates respect for the listener.
“Sawadee khrap.”
“Sabai dee mai kha?”
Softening Request
Reduces the bluntness of a command.
“Pai tee nee noi.”
“Kho nam plao noi.”
Politeness Particle Usage
| Gender | Particle | Usage | Example |
|---|---|---|---|
| Male | khrap | All sentences | Sawadee khrap |
| Female | kha | All sentences | Sawadee kha |
| Neutral | noi | Softening requests | Kho nam noi |
Common Variations
| Full | Spoken/Text | Note |
|---|---|---|
| khrap | krap | Commonly dropped 'h' |
| kha | ka | Commonly dropped 'h' |
Reference Table
| Form | Structure | Example |
|---|---|---|
| Affirmative | Sentence + khrap/kha | Chai khrap |
| Negative | Mai + Verb + khrap/kha | Mai ao kha |
| Request | Kho + Item + noi + khrap/kha | Kho nam noi khrap |
| Question | Sentence + mai + khrap/kha | Pai mai kha? |
| Gratitude | Khob khun + khrap/kha | Khob khun khrap |
| Apology | Kho thot + khrap/kha | Kho thot kha |
격식 수준 스펙트럼
Kho nam plao khrap. (Ordering in a restaurant)
Kho nam noi khrap. (Ordering in a restaurant)
Ao nam noi. (Ordering in a restaurant)
Nam noi. (Ordering in a restaurant)
Politeness Flow
Particles
- khrap male
- kha female
Modifiers
- noi softener
Politeness vs Intimacy
Examples by Level
Sawadee khrap.
Hello.
Khob khun kha.
Thank you.
Chai khrap.
Yes.
Mai chai kha.
No.
Kho nam noi khrap.
May I have some water?
Pai nai kha?
Where are you going?
Gin khao mai khrap?
Have you eaten?
Chai dai mai kha?
Is this possible?
Chuay phom noi khrap.
Please help me.
Mai pen rai kha.
It's okay.
Kho thot khrap.
I'm sorry.
Pai dai kha.
Yes, we can go.
Rop kuan noi khrap.
Sorry to bother you.
Mai tong kangwon kha.
Don't worry.
Khun chue arai khrap?
What is your name?
Yin dee tee dai roo jak kha.
Nice to meet you.
Phom kho anuyat khrap.
May I have permission?
Kha, dichan khao jai laew.
Yes, I understand now.
Chuay check bin noi khrap.
Please check the bill.
Mai dai kha, khun tong ro.
No, you must wait.
Rop kuan khun chuay pai tee nee noi khrap.
Could you please go to this place?
Kha, dichan ja pai.
Yes, I will go.
Khob khun mak khrap.
Thank you very much.
Mai pen rai kha, yindee.
You're welcome, my pleasure.
Easily Confused
Learners often use 'ja' with everyone.
자주 하는 실수
Sawadee.
Sawadee khrap/kha.
Pai nai?
Pai nai kha?
Kho nam ja.
Kho nam noi khrap.
Khrap khrap.
Khrap.
Sentence Patterns
___ khrap/kha
Kho ___ noi khrap/kha
___ dai mai khrap/kha
Phom/Dichan ___ khrap/kha
Real World Usage
Kho pad thai noi khrap.
Pai Siam noi khrap.
Ok krub.
Dichan chue... kha.
Khob khun khrap.
Pai nai kha?
Consistency
Gender
Softening
Smile
Smart Tips
Always add 'noi khrap/kha' to your order.
Use 'Rop kuan' + 'noi'.
End with 'khrap/kha'.
Use 'krub/ka'.
발음
Khrap
The 'r' is often dropped in casual speech.
Kha
The tone is high and flat.
Question
Pai mai kha? ↑
Rising intonation for questions.
Memorize It
Mnemonic
Khrap is for the King (men), Kha is for the Queen (women).
Visual Association
Imagine a man bowing (khrap) and a woman smiling (kha).
Rhyme
For a polite chat, add khrap or kha to the end of that.
Story
John walked into a shop. He said 'Hello' without a particle. The shopkeeper looked confused. John added 'khrap' and the shopkeeper smiled. Now John always uses particles.
Word Web
챌린지
Say 'Khob khun khrap/kha' to everyone you interact with for 24 hours.
문화 노트
Particles are used constantly in professional and social settings.
They use 'jao' instead of 'kha'.
They use 'phuean' or other local markers.
These particles evolved from ancient honorifics used in the royal court.
Conversation Starters
Khun chue arai khrap?
Pai nai kha?
Kho menu noi khrap.
Khun thum ngan arai khrap?
Journal Prompts
Test Yourself
Sawadee ___
How to order water?
Find and fix the mistake:
Pai nai ja? (to a stranger)
khrap / noi / Kho / nam
Particles are optional.
A: Sawadee. B: ___
Female speaker: ___
Match each item on the left with its pair on the right:
Score: /8
연습 문제
8 exercisesSawadee ___
How to order water?
Find and fix the mistake:
Pai nai ja? (to a stranger)
khrap / noi / Kho / nam
Particles are optional.
A: Sawadee. B: ___
Female speaker: ___
noi -> ?
Score: /8
자주 묻는 질문 (8)
Yes, they are essential for polite Thai.
No, only with close friends.
It's okay, but try to correct it.
Only for requests.
Use full sentences and particles.
Yes, in texts and emails.
Historical social roles.
Practice saying them out loud.
In Other Languages
Desu/Masu
Thai particles are gendered.
Usted
Thai uses particles, not conjugation.
Vous
Thai uses particles.
Sie
Thai uses particles.
Nin
Thai uses sentence-final particles.
Honorific titles
Thai uses particles.