would have been 和 would have done 有什么区别吗

Question

如题所述

Answer 1

would have done
是一个形式，done代表过去分词，would have been是一个具体的，由于句子没动词，故用be动词

Answer 2

前者是已经的意思，后面接动词
后者是做完的意思，后面接something