You never said much,but I always knew that every time we saw each other,you were glad to see me.As I am always glad to see you.这句话为什么前面always 不用加be 动词?

问题描述:

You never said much,but I always knew that every time we saw each other,you were glad to see me.
As I am always glad to see you.这句话为什么前面always 不用加be 动词?