Causative “ have “ is followed by the simple form of a verb, not an infitinive.
1. I have the plumber repair the leak ( correct )
2. Ihad the plumber to repair the leak ( incorect )
Ø “ have “ gives the idea that “ x “ request “ y “ to do something
Ø “ x “ has/have/had “ y “ do something ( simple form )
Have something done
(have+past participle (V3)
The past participle is used after “ have “ to give a passive meaning.
Example : I had my wacth repaired (by someone) yesterday.
Mean : I caused my wacth to be repaired by someone
b) S+had+obj+v3+past time
c) S+ tobe+having+object+v3+at the moment/now/rightnow
a) I have my sister clean my cuit.(clean)
b) Jack had mike remove the cupboard two hours ago.(remove)
c) We are having the house painted(the house/paint) at the moment