wish后宾语从句用虚拟语气要表示与现在事实相反的愿望，从句谓语用一般过去时或过去进行时，表示与过去相反的愿望，从句谓语用过去完成时或would / could+have +过去分词，表示将来没有把握或不太可能实现的愿望，用would (could)＋动词原形。

如：I wish I were [was] better looking.

要是我长得漂亮些就好了。

She wished she had stayed at home.

她后悔的是她当时要是留在家里就好了。

I wish you would go with us tomorrow.

要是你明天同我们一起去就好了。

【注意】



从句的时态只与从句所指的时间有关，而与wish的时态无关，比较：I wish I were rich.

要是我现在有钱就好了。

I wish I had been rich.

要是那时我有钱就好了。

I wished I were rich.

当时我后悔自己没有钱。

I wished I had been rich.

当时我后悔自己曾经没有钱。

【wish后宾语从句用虚拟语气查看网站：[db:时间]】