关于不定式的时态不 定 式 主 动 被 动 一 般 to do to be done 进 行 to be doing /

关于不定式的时态不 定 式 主 动 被 动 一 般 to do to be done 进 行 to be doing / 英语语法问题:Sb/Sth+be+过去分词+不定式(to do,to be done,to be doing..) sb is said to do/ to have done / to be doing 中不定式的用法详解 与 例句 请问,to do 不定式可以做句子中的任何一种成分,那么 to be doing 和 to be done 英语语法求教!急不定式的 一般式是：to do 被动式：to be done 这是它的时态 .但是,用于句法功能时,比如 to do和to be done和to be doing的意义 将来时态的区别be going to;will do;be doing;be to do;be about to do being done 和 be doing ;done ；doing ; be done ;to be done 的用法 to be done=doing? 怎么区分谓语动词,to do doing done 和to be doing to be done to have do to do / to be doing / to have done / to have been doing/doin need to do、need do、need doing、neeed to be done的区别