seem to be为什么seem 的后面要加to

seem to be为什么seem 的后面要加to seem to的否定为什么是do not seem to 而不是not加后面? seem to be 的用法 英语seem to be seem to be done It seem to be a good idea.为什么要加be seem to be+adj和 seem+adj 的区别? seem+形容词和seem to be there seem 就是there seem to be 英语书上不是说seem to do sth,为什么要加be,可以省略吗? seem to be的否定形式是seem not to be还是don't seem to be There seem to be的否定形式