▲以下两种表达也是虚拟语气的一种用法：

1. would rather have done sth.：宁愿做某事（对过去未做某事表示后悔）

2. would rather not have done sth.：宁愿不做某事（对过去所做某事表示后悔）

▲I would rather not have joined it. Everyone is saying its management is going from bad to worse.

【翻译】我不加入这个俱乐部该多好。大家都说它的管理会越来越糟。

为何不用had joined代替have joined？——原因是：would + have done，不是would +had done。

rather在本句用作副词，表示“宁可，宁愿”，经常跟would 连用。

【注意】分析成分不要孤立地看待问题，要学会瞻前顾后。had done是过去完成时，不可再跟would连用；would 后的完成式是：would have done。

例如：我们常说would better do sth.为何在better之后是动词原形？因为前面是would，better是副词“最好”，实际就是在would之后跟动词原形，不是在better之后跟动词原形。这跟我们讨论的句子是一个道理，would not have joined 之间插上了rather而已。