be sorry to have done的用法

be sorry to have done的用法 be used to have done是什么用法? to be done的用法 being done 和 be doing ;done ；doing ; be done ;to be done 的用法 have been done与be done的区别和用法 to have done,to be done,to have been done,having done在用法上有什么 have done/to be done to be done 和having been done的用法 sb.be said to have done什么意思以及用法? have sth. done 和have sth.to be done用法有什么区别 sb is said to do/ to have done / to be doing 中不定式的用法详解 与 例句 have been done 和 to be done