to do 和 to have done

to do 和 to have done considered to do和considered to have done怎么区分 seem to do和seem to have done的区别 was to do&was to have done seem to do seem to have done 怎么区分谓语动词,to do doing done 和to be doing to be done to have do 歌曲中含有TO DO ：TO BE DONE ：TO HAVE BEEN DONE ：TO HAVE DONE have been done 和 to be done have done nothing but do 、done 、doing、to do? have sth done和have sth to do和have sth do有什么区别? claim to have done sth 是声称做过某事 可是to do 和 to have done 有什么区别? have sb do/doing/done/to do的意思 have sb do 和have sb to do有区别吗