sth request to be done=sth request doing有这样的主动表被动吗?类似于need to be done=need doing

be sure to do sth. be pleased to do sth be able to do sth be going to do sth be let to do sth? be sad to do sth. be made to do sth be obliged to do sth. be used to do sth. be to do sth和will do sth的区别 sth request to be done=sth request doing有这样的主动表被动吗?类似于need to be done=need doing be worth to do sth 还是be worth doing sth be scared to do sth还是be scared doing sth be surprised at sth.和be surprised to do sth. be glad to do sth 还是be glad doing sth be heard to do sth 还是 be heard doing sth? be used to do sth,be use to doing sth,be use to sth,be use for sth区别 be adj enough to do sth造句