Tuesday, October 13, 2009

Causative Verbs รูปกริยาที่เราให้คนอื่นทำให้

Causative Verbs รูปกริยาในภาษาอังกฤษที่เราไม่ได้เป็นผู้กระทำเอง แต่ใช้ให้คนอื่นหรือวานให้คนอื่นทำให้เรา พบบ่อยมากๆ ในข้อสอบภาษาอังกฤษทั่วไป โดยมีสูตรท่องจำกันว่า
Have someone do something
ยกตัวอย่างประโยค I have my friends do my homework "ฉันให้เพื่อนๆ ของฉันทำการบ้านให้"
และแบบกลับกัน
Have something done by someone
ยกตัวอย่างประโยค I have my car fixed by my friend "ฉันให้รถของฉันซ่อมโดยเพื่อน"
เวลาข้อสอบออกมาก็จะเว้นช่องคำกริยาไว้ให้เติมให้ถูกต้อง เช่น
ํYesterday, I had my hair .......... by a barber.
a. cut b. to cut c. cutting
เฉลย a ถูกเพราะอยู่ในรูปของ something done (v.3) by someone


Jack had his house painted.

This sentence is similar in meaning to: Someone painted Jack's house. OR Jack's house was painted by someone. Causative verbs express the idea of someone causing something to take place. Causative verbs can be similar in meaning to passive verbs.

Examples:

My hair was cut. (passive)
I had my hair cut. (causative)

Both 'make' and 'have' can be used as causative verbs.

Make

'Make' as a causative verb expresses the idea that the person requires another person to do something.

Construction Chart

Subject + Make + Person + Base Form of Verb

Examples:

Peter made her do her homework.
The teacher made the students stay after class.

Have

'Have' as a causative verb expresses the idea that the person wants something to be done for them. This causative verb is often used when speaking about various services. There are two forms of the causative verb 'have'.

Construction Chart: Use 1

Subject + Have + Person + Base Form of Verb

Examples:

They had John arrive early.
She had her children cook dinner for her.

Construction Chart: Use 2 Subject + Have + Object + Past Participle

Examples:

I had my hair cut last Saturday.
She had the car washed at the weekend.

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