Asking for Permission in Thai (dai)
dai mai to the end of your verb turns any action into a polite permission request.
Grammar Rule in 30 Seconds
Use 'dai' (ได้) after a verb to express permission or ability in Thai.
- Affirmative: Verb + dai (e.g., 'kin dai' - can eat).
- Negative: Mai + verb + dai (e.g., 'mai kin dai' - cannot eat).
- Question: Verb + dai + mai? (e.g., 'kin dai mai?' - can I eat?).
Overview
dai. It’s the ultimate golden ticket. It transforms a simple request into a polite, socially acceptable inquiry. Whether you’re asking to leave a group chat, take a photo, or use a seat, dai is your best friend. It’s not just a word; it’s your social lubricant.How This Grammar Works
dai as the Thai equivalent of "can" or "may." You place it at the end of a sentence to turn a statement into a permission-seeking question. It’s incredibly versatile. You don’t need to conjugate it for different people. It stays the same whether you’re talking to your boss or your cat. It’s basically the "get out of jail free" card of Thai grammar.
Formation Pattern
dai mai (can I...?) at the very end.
khrap (male) or kha (female) to sound like a civilized human.
When To Use It
chaart fai dai mai. Want to sit on a crowded BTS train? nang dai mai works wonders. It’s essential for digital nomads and travelers. Don’t be the person who just grabs things without asking. That’s a quick way to get a TikTok video made about you.
Common Mistakes
mai at the end. Without mai, you’re just stating that you *can* do it, not asking if you are *allowed* to. Also, avoid using it for "ability" if you mean "I have the skill to do it." That’s a different nuance. Keep it simple and focus on permission.Contrast With Similar Patterns
dai with sa-mat. sa-mat is like saying "I possess the physical capability." dai is about the "green light" from the universe or the person in front of you. If you’re asking for a favor, always go with dai.Quick FAQ
Can I use dai for everything? A: Pretty much! It’s the Swiss Army knife of Thai. Q: Is it rude? A: Only if you forget your polite particles. Always add khrap or kha!
Formation of 'Dai'
| Type | Structure | Example | Meaning |
|---|---|---|---|
|
Affirmative
|
Verb + ได้
|
กินได้
|
Can eat
|
|
Negative
|
ไม่ + Verb + ได้
|
ไม่กินได้
|
Cannot eat
|
|
Question
|
Verb + ได้ + ไหม
|
กินได้ไหม
|
Can I eat?
|
|
Ability
|
Verb + ได้
|
ว่ายน้ำได้
|
Can swim
|
|
Permission
|
Verb + ได้
|
จอดได้
|
Can park
|
|
Possibility
|
Verb + ได้
|
ไปได้
|
Possible to go
|
Common Spoken Contractions
| Full Form | Spoken Form |
|---|---|
|
ไม่ได้
|
ไม่ได้ (mai-dai)
|
Meanings
The word 'dai' acts as a modal verb indicating permission, possibility, or ability.
Permission
Seeking or granting authorization.
“จอดรถตรงนี้ได้ (Jod rot trong nee dai) - You can park here.”
“เข้าได้ไหม? (Khao dai mai?) - Can I enter?”
Ability
Possessing the skill or physical capacity.
“ฉันว่ายน้ำได้ (Chan wai nam dai) - I can swim.”
“เขาพูดไทยได้ (Khao phoot Thai dai) - He can speak Thai.”
Possibility
Something that is feasible.
“ไปได้นะ (Pai dai na) - It is possible to go.”
“กินได้ (Kin dai) - It is edible.”
Reference Table
| Type | Thai | Meaning |
|---|---|---|
|
Question
|
Verb + dai mai?
|
Can I [verb]?
|
|
Affirmative
|
Verb + dai
|
Yes, I can
|
|
Negative
|
Verb + mai dai
|
No, I cannot
|
|
Polite Marker (M)
|
Verb + dai mai khrap
|
Can I [verb] (m)?
|
|
Polite Marker (F)
|
Verb + dai mai kha
|
Can I [verb] (f)?
|
|
Casual
|
Verb + dai
|
Can I [verb] (casual)
|
Formality Spectrum
เข้าได้ไหมครับ/คะ (Entering a room)
เข้าได้ไหม (Entering a room)
เข้าได้ป่ะ (Entering a room)
เข้าได้ป่ะ (Entering a room)
Permission Map
Actions
- Nang Sit
- Tai ruup Photo
Dai vs Sa-mat
The Permission Flow
Want to ask?
Polite?
Common Requests
Requests
- • Sit
- • Photo
- • Charge Phone
Examples by Level
กินได้
Can eat
ไปได้
Can go
ทำได้
Can do
มาได้
Can come
จอดรถตรงนี้ได้ไหม?
Can I park here?
ฉันพูดไทยได้นิดหน่อย
I can speak a little Thai
เขามาไม่ได้
He cannot come
เข้าได้เลย
You can enter
คุณสามารถทำได้ถ้าคุณพยายาม
You can do it if you try
ที่นี่ห้ามสูบบุหรี่ สูบไม่ได้
No smoking here, you cannot smoke
ฉันคิดว่าเราไปได้นะ
I think we can go
เขาทำงานนี้ได้ดีมาก
He can do this job very well
การตัดสินใจนี้ทำได้ยาก
This decision is hard to make
เราไม่สามารถปฏิเสธความจริงนี้ได้
We cannot deny this truth
ถ้าคุณต้องการ คุณก็ทำได้
If you want, you can do it
เขาได้รับอนุญาตให้ไปได้
He is permitted to go
ความสำเร็จนี้เกิดขึ้นได้เพราะความพยายาม
This success is possible because of effort
ไม่มีใครทำได้ดีเท่าเขา
No one can do it as well as him
เราควรทำในสิ่งที่ทำได้
We should do what we can
เหตุการณ์นี้อาจเกิดขึ้นได้ทุกเมื่อ
This event can happen at any time
การตีความนี้ทำได้หลายรูปแบบ
This interpretation can be done in many ways
เขาสามารถบรรลุเป้าหมายได้โดยง่าย
He can achieve the goal easily
ไม่มีสิ่งใดที่ทำไม่ได้หากตั้งใจ
Nothing is impossible if you are determined
ความเป็นไปได้นี้ทำได้จริง
This possibility is actually achievable
Easily Confused
Both mean 'can'.
Both contain 'dai'.
Both contain 'dai'.
Common Mistakes
ได้กิน
กินได้
กินไหม
กินได้ไหม
ไม่กิน
ไม่กินได้
ฉันได้กิน
ฉันกินได้
สามารถกิน
กินได้
กินได้ไม่
กินได้ไหม
ไม่สามารถกินได้
กินไม่ได้
ฉันได้ไป
ฉันไปได้
กินได้หรือเปล่า
กินได้ไหม
ทำได้ดี
ทำได้ดี
สามารถที่จะทำได้
ทำได้
ไม่สามารถที่จะทำได้
ทำไม่ได้
ทำได้จริงไหม
ทำได้ไหม
Sentence Patterns
ฉัน ___ ได้
___ ได้ไหม?
ฉันไม่ ___ ได้
คุณ ___ ได้ดีมาก
Real World Usage
เผ็ดได้ไหม?
มาได้ป่ะ?
ฉันทำได้ครับ
ไปทางนี้ได้ไหม?
ไม่ใส่ผักได้ไหม?
แชร์ได้เลย
Don't overthink
Check your tone
Smile
Smart Tips
Always add 'khrap' or 'kha' to be polite.
Use 'dai' instead of 'samart' for natural speech.
Use 'mai dai' after the verb for clarity.
Don't forget the 'mai' particle.
Pronunciation
Tone
Dai has a falling tone.
Question
กินได้ไหม? ↑
Rising intonation at the end.
Memorize It
Mnemonic
Dai is like a 'Die' (pass) card in a game; it lets you move forward.
Visual Association
Imagine a gatekeeper holding a sign that says 'ได้' (Dai) to let you through.
Rhyme
When you want to say you can, put 'dai' after the plan.
Story
A tourist asks 'Eat here?' (Kin dai mai?). The waiter smiles and says 'Kin dai!' (You can eat). The tourist is happy and says 'Aroi!'
Word Web
Challenge
For 5 minutes, look at objects around you and say what you can do with them using 'dai'.
Cultural Notes
Thai culture values politeness. Always add 'khrap' or 'kha' after 'dai'.
Dai is a Proto-Tai word meaning 'to get' or 'to obtain'.
Conversation Starters
คุณพูดไทยได้ไหม?
ที่นี่จอดรถได้ไหม?
คุณทำอาหารไทยได้ไหม?
เราไปดูหนังกันได้ไหม?
Journal Prompts
Common Mistakes
Test Yourself
___ (take a photo) dai mai?
Choose the correct permission request:
Find and fix the mistake:
Nang dai.
Score: /3
Practice Exercises
8 exercisesฉันกิน___
Which is correct?
Find and fix the mistake:
ได้กินไหม
ได้ / ฉัน / ไป
Can I go?
Match 'Can eat' with Thai.
กินได้
A: ไปได้ไหม? B: ___
Score: /8
Practice Bank
10 exercisesJot rot trong ni ___ mai?
mai / dai / nang
Can I sit?
Which includes a polite particle?
Tai ruup dai.
Khao ___ dai mai?
Match the action to the request
Which implies skill?
___ fai dai mai?
Can I park?
Score: /10
FAQ (8)
Yes, it is the standard way to ask for permission.
Yes, it is used for both ability and permission.
Always after the verb.
Use 'mai' before the verb or 'mai dai' after.
Only in formal writing.
Because it covers many meanings.
Yes, it is standard Thai.
Yes, with time markers.
Scaffolded Practice
1
2
3
4
Mastery Progress
Needs Practice
Improving
Strong
Mastered
In Other Languages
Poder
Spanish conjugates for person; Thai does not.
Pouvoir
French requires inversion for questions; Thai uses particles.
Können
German verbs change position in sentences.
Dekiru
Japanese uses different structures for permission (te-form).
Yastati'
Arabic is highly inflected for gender and number.
Neng/Ke yi
Chinese has separate words for ability vs permission.
Learning Path
Prerequisites
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