CAUSATIVE VERBS

Have

Have a common causative verb. Instead of doing something with ourselves, we "tell" the other person to do so. The shape is as follows:

The verb "to have" + object + past participle (verb 3). Example:

- I've had my jacket cleaned yesterday. 

- Did you have your computer fixed?

Sometimes we use have as a causative verb when we want to take action by ourselves. Example:

- When will the report be ready? I'll do it by tomorrow morning. >> 

- When will the report be ready? I'll have it done by tomorrow morning.

By using the causative, the second sentence above divert attention from the perpetrator, and pay more attention to the actions that are being carried out. It sounds polite and professional.

Get

Get is often used instead of have. Example:

·         I got my computer fixed - I've had my computer fixed. Both of these words mean the same thing.

·         I got my jacket cleaned. - I've had my jacket cleaned. Both of these words mean the same thing.

Causative verbs are often used in conjunction with negative experiences. In these situations have a more general use. Example:

·         I had my wallet stolen. (I actually do not cause my wallet was stolen - someone stole my wallet from me)

·         She had her window smashed.

Let

Let be used to allow someone to do something. The form is let + person + verb. Example:

·         John let me drive his new car.

·         Will your parents let you go to the party?

·         I do not know if my boss will let me take the day off.

Make

Make is used to force someone to do something. The form is the make + person + verb. Example:

·         My teacher made ​​me apologize for what I had said.

·         Did somebody make you wear that ugly hat?

·         She made ​​her children do their homework. http://englishonline.blogdetik.com/2009/08/29/causative-verb-get-have-let-make/