1） have sb do sth 让某人做某事
2） have sth to do 有…要做 .
3）have sb doing sth 让…一直做某事 容忍某人做某事（用于否定句）
4）have sth done 找人做某事 遭遇某事
例句：
I have a lot of things to do.
Who do you want to have repair the computer.
William had him stand with an apple on top of his head.
I won’t have you saying like that.
Don’t have the machine running all the time.
He had his hair cut the other day.
