i wish i could have seen the ballet 里的could是不是代替了should/would,那么换句话说could+have+过去分词也是过去将来完成时的构成结构,

问题描述:

i wish i could have seen the ballet 里的could是不是代替了should/would,那么换句话说could+have+过去
分词也是过去将来完成时的构成结构,