How I wish it weren't raining now中it是单数为什么用were

How I wish it weren't raining now中it是单数为什么用were How i wish it weren't raining tomorrow!结构好奇怪 If it weren't raining so hard,we'd go to the town.中为什么用were I wish I weren’t the youngest one为什么用were I wish I were(这里为什么要用were啊?兄弟们,) on a holiday now ,but it is I wish it would stop raining. I don't want to go out now. It's raining hard._____, I'm so How I wish I could kept it! How i wish that it was true!怎么是这样,it不是接were吗?是不是有this或that加i 单选How I wish it were sunday today!---If so ,you _____go to s It is raining now.raining 词性是什么 I wish everything wasn't/weren't so expenxive.为什么这里又能用wasn't