need doing ,need to be done,need to do 三者的区别?

need doing ,need to be done,need to do 三者的区别? need to do、need do、need doing、neeed to be done的区别 need+to be done和need +doing的区别 need doing 和need to be done 的区别 need doing 和need to be done need doing 和 need to be done有什么区别? need do;need to do;need doing的区别? need to be done与need to doing的区别是什么? need doing need to do 区别 need to do ,need doing need doing = need to be 它和need to do有什么区别 need to do和need doing的区别