Causative Constructions in Thai

In Brief

Thai often uses ให้ (hâi) to connect the person who causes, requests, or permits something with the resulting action. Use ทำให้ (tham hâi) for “make/cause,” a verb such as บอก, ขอ, or สั่ง before ให้ for “tell/request/order someone to,” and ให้ at the start of a clause for “let/allow.”

Overview

A causative construction describes a situation in which one person or thing causes another action or result. English does this with several patterns: “make her laugh,” “tell him to wait,” “let them enter,” and “cause the road to close.” Thai expresses these meanings without changing the verb itself. Instead, it places verbs in sequence and commonly uses ให้ (hâi).

This is a natural B1 step after Thai serial verb constructions: several verbs can occur one after another without an English-style word meaning “to.” In แม่บอกให้ลูกกลับบ้าน (“The mother told her child to go home”), กลับ is not an infinitive and does not need an equivalent of English “to.” The position of each participant tells you who does what.

The main challenge is that ให้ has several jobs. On its own it can mean “give”; in the patterns here it can introduce an intended action, a caused result, or permission. Rather than translating every ให้ as one English word, identify the verb before it and ask whether the sentence describes a result, an instruction, a wish, or permission.

How It Works

1. ทำให้: cause a result

The most general causative is ทำให้ (tham hâi), literally built from ทำ “do/make” and ให้. It means “make,” “cause,” or “result in.”

Pattern	Role	Example
cause + ทำให้ + person/thing + state	something produces a condition	เพลงนี้ทำให้ฉันมีความสุข — This song makes me happy.
cause + ทำให้ + person/thing + action	something causes an action/event	ฝนทำให้รถติด — The rain causes traffic congestion.
ทำให้ + person/thing + state/action	the cause is understood	ทำให้ผมดีใจ — It makes me happy.

The element after ทำให้ is the affected person or thing. It becomes the subject of the following state or action—that is, the person or thing that experiences or performs it:

ข่าวนี้ + ทำให้ + เขา + ร้องไห้ this news + causes + him + cry

Thai adjectives can function as state verbs, so no separate verb meaning “be” is needed. In ทำให้ผมดีใจ, ดีใจ directly means “be glad.”

Do not automatically use ทำให้ whenever English has “make.” If “make” means create or produce an object, use ทำ instead: ทำอาหาร means “make/cook food.” ทำให้อาหารเย็น means “make the food cold.”

2. A speech or control verb + ให้: get someone to act

After verbs of telling, asking, ordering, helping, or arranging, ให้ introduces the action that someone is expected or enabled to perform.

Pattern	Meaning
subject + บอกให้ + person + verb	tell someone to do something
subject + ขอให้ + person + verb	ask/request that someone do something
subject + สั่งให้ + person + verb	order someone to do something
subject + ช่วยให้ + person + verb/state	help or enable someone to do/be something

For example:

แม่บอกให้ลูกกลับบ้าน Mother + told + child + return home

Here แม่ is the person who speaks, while ลูก is the person who returns. The noun or pronoun before the second verb normally identifies its performer. When that person is obvious, Thai may omit it: แม่บอกให้กลับบ้าน can mean “Mom told me/him/her/us to go home,” depending on context.

English speakers often expect an infinitive: “tell him to go.” Thai has no infinitive marker here. ให้ belongs to the larger construction; ไป remains unchanged.

3. ขอให้: requests, wishes, and hopes

ขอให้ (khɔ̌ɔ hâi) has two closely related uses.

• Request: ขอให้ทุกคนปิดโทรศัพท์ — “Please / We ask everyone to turn off their phones.”
• Wish: ขอให้โชคดี — “Good luck” or, more literally, “May you have good luck.”

In a request, the sentence aims to influence what someone does. This use can sound official or deliberate, especially in announcements. In a wish, the speaker is not commanding the event; common formulas include ขอให้มีความสุข (“May you be happy”) and ขอให้หายเร็ว ๆ (“Get well soon”). The intended recipient is frequently omitted when obvious.

For a small everyday favor, Thai often uses a direct request with หน่อย, such as ช่วยเปิดประตูหน่อย (“Please open the door”). Using ขอให้ is grammatical, but may sound more formal or weighty than the situation requires.

4. ให้ at the beginning: let or allow

When ให้ comes before a person and an action, it can mean “let,” “allow,” or “have [someone] do something.”

Pattern	Typical reading	Example
ให้ + person + verb	let/have the person do it	ให้เขาพูด — Let him speak.
ให้ + person + verb + ได้	allow the action; say it is possible	ให้เขาเข้ามาได้ — Let him come in.
subject + ไม่ให้ + person + verb	not allow the person to do it	พ่อไม่ให้ฉันขับรถ — Dad does not let me drive.

Context and tone distinguish permission from an instruction. ให้เขารอที่นี่ might mean “Let him wait here” or “Have him wait here.” A soft conversational context favors permission; an instruction from a manager favors “have him.”

With a stated person who grants permission, that person comes first: ครูให้นักเรียนกลับบ้านได้ means “The teacher allows the students to go home.” The negative ไม่ normally comes before ให้ when permission is denied: ครูไม่ให้นักเรียนออกไป.

5. Keeping the participants clear

Longer causatives may contain two different doers:

ผู้จัดการบอกให้พนักงานโทรหาลูกค้า “The manager told the employee to call the customer.”

The manager performs บอก; the employee performs โทร; the customer is the person called. Thai does not mark these roles with case endings (changes to a noun that show its job). Word order and context do the work.

Pronouns can be omitted when everyone knows who is meant. That is natural in conversation, but learners should first practice complete patterns. Add the affected person whenever omission would make the sentence unclear.

Examples in Context

Thai	Romanization	English	Note
ทำให้ผมดีใจ	tham hâi phǒm dii-jai	It makes me happy.	The cause is understood.
เรื่องนั้นทำให้เธอเสียใจ	rʉ̂ang nán tham hâi thəə sǐa-jai	That matter made her sad.	ทำให้ causes an emotional state.
ฝนตกหนักทำให้ถนนปิด	fǒn tòk nàk tham hâi thanǒn pìt	Heavy rain caused the road to close.	An event causes another event.
ยานี้ทำให้ฉันง่วง	yaa níi tham hâi chǎn ngûang	This medicine makes me sleepy.	ง่วง is a state verb.
แม่บอกให้กลับบ้าน	mâe bɔ̀ɔk hâi klàp bâan	Mom told me to go home.	The person returning is omitted.
ครูบอกให้นักเรียนอ่านบทที่สาม	khruu bɔ̀ɔk hâi nák-rian àan bòt thîi sǎam	The teacher told the students to read chapter three.	The second actor is explicit.
ขอให้ทุกคนเงียบสักครู่	khɔ̌ɔ hâi thúk khon ngîap sàk khrûu	Please remain quiet for a moment.	A formal or public request.
ขอให้โชคดี	khɔ̌ɔ hâi chôok dii	Good luck.	A conventional wish.
ขอให้หายเร็ว ๆ นะ	khɔ̌ɔ hâi hǎai reo reo ná	Get well soon.	นะ adds warmth.
ให้เขาพูดก่อน	hâi khǎo phûut kɔ̀ɔn	Let him speak first.	Permission or an instruction, by context.
ให้เขาเข้ามาได้	hâi khǎo khâo maa dâai	Let him come in.	ได้ confirms permission or possibility.
พ่อไม่ให้ฉันขับรถตอนกลางคืน	phɔ̂ɔ mâi hâi chǎn khàp rót tɔɔn klaang khʉʉn	Dad does not let me drive at night.	ไม่ให้ denies permission.
หัวหน้าสั่งให้เราส่งรายงานวันนี้	hǔa-nâa sàng hâi rao sòng raai-ngaan wan-níi	The boss ordered us to submit the report today.	Stronger than บอกให้.
แอปนี้ช่วยให้เรียนภาษาไทยง่ายขึ้น	áep níi chûai hâi rian phaa-sǎa thai ngâai khʉ̂n	This app helps make learning Thai easier.	ช่วยให้ enables a result.

Romanization is only a pronunciation aid. In particular, ให้ has a falling tone (hâi), while ได้ also has a falling tone (dâai); learn them as separate written words.

Common Mistakes

Treating every English “make” as ทำให้

• Wrong: ฉันทำให้เค้ก for “I make a cake.”
• Right: ฉันทำเค้ก
• Why: ทำให้ means “cause a result.” Creating an object normally uses ทำ. Use ทำให้เค้กเย็น if you mean “make the cake cold.”

Adding an English-style “to” idea twice

• Wrong: แม่บอกให้ลูกให้กลับบ้าน
• Right: แม่บอกให้ลูกกลับบ้าน
• Why: One ให้ links บอก to the requested action. Thai does not add another marker before กลับ.

Losing track of who performs the second verb

• Unclear: ครูบอกให้โทรหาผู้ปกครอง when the context does not show who should call.
• Clear: ครูบอกให้นักเรียนโทรหาผู้ปกครอง — “The teacher told the student to call a parent.”
• Why: Thai allows omitted participants, but omission only works when context supplies them.

Putting the negative in the wrong place

• Different meaning: พ่อให้ฉันไม่ไป — “Dad has/allows me not to go.”
• Intended correction: พ่อไม่ให้ฉันไป — “Dad does not let me go.”
• Why: ไม่ให้ negates the granting of permission. ให้...ไม่ไป places the negative inside the action that follows.

Using ขอให้ for every casual request

• Awkwardly formal for a tiny favor: ขอให้คุณส่งเกลือให้ผม
• More natural in casual conversation: ช่วยส่งเกลือให้หน่อยครับ/ค่ะ — “Please pass me the salt.”
• Why: ขอให้ suits deliberate requests, notices, and wishes. ช่วย...หน่อย is often more conversational for a simple favor.

Usage Notes

บอกให้, ขอให้, and สั่งให้ differ in force. บอกให้ reports a direction and is fairly neutral. ขอให้ frames it as a request or wish. สั่งให้ explicitly means “order” and implies authority. Choosing among them communicates the relationship between the speakers, not just the action.

Politeness usually comes from the complete sentence and situation, not from ให้ itself. Speakers may add ครับ or ค่ะ, soften a request with หน่อย, or use ช่วย “help/please.” Conversely, a bare initial ให้ can sound like a firm instruction: ให้ทุกคนรอที่นี่ (“Everyone is to wait here”).

Spoken Thai omits subjects and objects freely when context is strong. Thus บอกให้รอแล้ว may mean “I already told you/him/her to wait.” English requires a choice in translation, but the Thai sentence need not state one. In formal writing or a complicated account, repeating the relevant noun can prevent ambiguity.

Be careful with ได้. After an action, it often marks ability or permission: เข้ามาได้ can mean “may/can come in.” In other positions and constructions, ให้ได้ can instead add determination, roughly “make sure to” or “succeed in”: ฉันจะทำให้ได้ means “I will manage to do it.” Do not assume every nearby sequence of ให้ and ได้ is a permission pattern.

Beyond the Basics: More Precise Causation and Control

At higher levels, Thai offers more specific verbs before ให้. The basic syntax remains familiar, but each verb adds a different kind of pressure or support.

Construction	Core meaning	Typical force
บังคับให้	force someone to	no real choice
สั่งให้	order someone to	authority and command
เรียกร้องให้	call on/demand that	formal or public demand
แนะนำให้	advise/recommend that	guidance
อนุญาตให้	permit someone to	explicit, often formal permission
กระตุ้นให้	encourage/stimulate someone to	creates motivation or response

Compare ครูให้นักเรียนกลับบ้าน (“The teacher let/had the students go home”) with ครูอนุญาตให้นักเรียนกลับบ้าน (“The teacher gave the students permission to go home”). The longer form removes much of the ambiguity between permission and instruction.

Causation can also differ in directness. เขาทำให้เด็กหัวเราะ says that he caused the child to laugh, but it does not specify how. A more exact verb may describe the mechanism: เขาเล่าเรื่องตลกจนเด็กหัวเราะ means “He told a joke until/as a result the child laughed.” Advanced Thai often chooses between a compact ทำให้ clause and a more explicit cause-and-result structure according to what the speaker wants to emphasize.

Finally, ทำให้ can connect whole propositions in formal explanation: การขาดข้อมูลทำให้ตัดสินใจได้ยาก (“The lack of information makes it difficult to decide”). Here the cause is an abstract noun phrase, and the result is an impersonal assessment. This is common in news, reports, and academic prose.

Practice Tips

1. Build four pattern families. Take one simple action such as กลับบ้าน (“go home”) and make sentences with บอกให้, ขอให้, สั่งให้, and initial ให้. Notice how the event stays the same while the speaker’s intention changes.
2. Mark the actors. When reading a causative sentence, underline the person before the first verb and circle the person before the second verb. Then say aloud who tells, causes, permits, and performs the final action.
3. Listen for chunks, not isolated words. Save complete phrases such as ทำให้รู้สึก..., บอกให้..., ไม่ให้..., and ขอให้.... This prevents you from translating every ให้ as “give.”

Related Concepts

• Prerequisite: Serial Verb Constructions — explains how Thai places several verbs in sequence without infinitive endings.
• Next step: Advanced Causative Constructions — expands the pattern with verbs for forcing, ordering, demanding, and advising.