来个都是虚拟.should have done是主动,应该做而没做；should have been done是被动,应该被做而没被做.
eg：You should have told me yesterday that you had changed your mind. 你昨天应该告诉我你改变主意了.（实际上没有告诉）
Your work should have been done before you went home. 你的工作应该在你回家之前（被）做完.（实际上没被做完）