虚拟语气中，would be 能够改为 were 吗？

Your parents would be angry if you were lazy.

请问：这里的 would be 能够改为 were 吗？

解答如下：

这里不能改成would be 是虚拟语气用法，是对将来虚拟，从句对现在虚拟谓语be动词只能用were, 行为动词用did，主句对将来虚拟,谓语用would/should/could/might+动词原形。

If I were a bird, I would fly to America.

If Tom were very diligent,his mother would be very happy.

If I had one million dollars, I would buy a big house.（虚拟语气）

If I have one million dollars, I will buy a big house.(陈述语气）

与事实相反的虚拟语气的句子，无论是否有从句，主句的谓语必须使用某个情态动词（多表示推测意义）的过去形式，如would/should/could/might。

所以，问题中的would be不能改为were。

理由：即使没有从句，主句的内容也是推测或推断与事实相反的情况，需要用情态动词表示推测。用情态动词的过去式以区别于陈述语气的可能是事实。