The Causative

We use have + object + past participle to say that we have arranged for someone to do something for us.

Ann had her hair cut by the hairdresser.

- Questions and negations of the verb have are formed with do/does or did.

Did you have the tap fixed?

- We can also use the causative form to say that something unpleasant happened to somebody.

- We can use the verb get instead of the verb have only in informal conversation.

PRESENT SIMPLE                  She types the letters                   She has the letters typed

PRESENT CONTINUOUS       She`s typing the letters               She`s having the letters typed

PAST SIMPLE                         She typed the letters                    She had the letters typed

PAST CONTINUOUS              She was typing the letters          She was having the letters typed

FUTURE SIMPLE                    She`ll type the letters                   She`ll have the letters typed

PRESENT PERFECT               She has typed the letters            She has had the letters typed

PRESENT PERFECT CONT.  She has been typing the letters  She has been having the letters typed

INFINITIVE                                She must type the letters            She must have the letters typed

(FROM ACCESS)

your efforts are really appreciable.