Question

have sb doing have sb done have sb to do have sth done have

Answer 1

have sb doing 使某人做某事,表示事情还在进行当中

eg：Prevent sb from doing sth.

have sb done 使他被某人做某事,事情也已完成

eg：Have you done your homework?

have sb to do 使某人做某事,表示事情准备进行,

eg：persuade sb to do sth

have sth done 要完成某事,表某事已经完成或者可能完成

eg：have the tree cut down

have machine examined

have sth to do 有某事要做,表事情还没做

eg：I have a lot of homework to do .

have sth doing 这个应该是have ..doing sth 吧

eg：have problems doing sth.

只是个人理解,仅供参考而已~