done可以做主语吗？

相当于名词的成分才可作主语或宾语.being done作主语或宾语时是动名词,相当于名词,而done是过去分词,相当于形容词或副词,不能充当名词的作用,故不可作主语或宾语.

例：（１）Once spoken, a word becomes a promise.一言既出，驷马难追．(作状语）（２）Once poured, water can’t be taken back again.覆水难收．（作状语）（３）Never corner a defeated enemy. 穷寇莫追 ． （４）Impressed by the beautiful scenery, I forgot togo back home in time. 流连忘返．（作状语）（５）A fault once denied(否认) is twice committed(犯)（作表语）.否认错误等于错上加错．（６）A contented mind is a continual feast (宴席）．知足常乐．（作定语）（７）Grief(忧愁） divided is made lighter.分担忧愁能使忧愁减轻．（作定语）You will feel very frustrated if you find yourselfsometimesmisunderstood by (被误解）yourbest friends. (misunderstand)1.及物动词的过去分词称为＿donebeing 加过去分词称为＿ being done.这两者都与逻辑主语构成被动关系．2.在句中担任主语和宾语时，只能用being dong,而不用 done．因为done具有形容词和副词的功能，不具有名词的性质，所以 done不能作主语和宾语 .而 being done既可用作动名词的例子：1.充当主语和宾语．(1)Being caught in a heavy traffic is quite an unpleasant experience.( 作主语)交通拥挤堵车是相当讨厌的经历．(2) He narrowly escaped being run over,．being done 和 done 都能作表语，但 being done的动作意义强，而 done只能表状态．