to do →to be done to be doing to have done →to have been done 动词不定式的用法,这几个怎么回事?

to do →to be done to be doing to have done →to have been done 动词不定式的用法,这几个怎么回事? be thankful to do / to have done 举个例子 what to do 与what to be done的区别 want to do want to be done这两种都有吗 seem to be done TO BE DONE怎么样 歌曲中含有TO DO ：TO BE DONE ：TO HAVE BEEN DONE ：TO HAVE DONE是班主任让查的, 关于英语非谓语问题非谓语doing having done to do to have done to be doing being done have been done to be done to have been doing done doing,having done,to do,to have done ,to be doing,being done,have been done,to be done,to have been doin to be done是什么意思?to do是表将来,to be done是表将来被吗?可是to do不是表主动的吗?什么时候会出现to be done啊?to being done 和to been done呢? be made done / be made to do 有什么区别? remain doing和remain to do区别remain to do 和 remain to be done呢 have sth done/to be done/dong/do/to doRT,如何区分,用法,意思 What should ____ must ____.A do,do B be done,be done C to be done ,do D do,be done With a lot of work to be done ,she felt .anxious.为什么不用to do,用to be done.RT it's good for you to keep____when you have something difficult______Atrying,to do Bto try,to be done Cto try,to do Dtrying,to be done “miss you end what's to be done do 区分一下sth be supposed to do和sth be supposed to be done have been done 和 to be done