英语语法问题Are you going to be free tomorrow?这里be是作系动词吗?去掉be能用别的词

Are you going to be free tomorrow对不对? there is going to be meeting tomorrow...这里IS BE 都是BE 动词吗. ----（be) you free tomorrow? where are you going to be tomorrow?的意思 Will you be free tomorrow. 明天你有空吗 英文Are you free tomorrow?应该是将来时,为什么还用be动词are? 英语语法问题 be to和be going to的区别 When you get home tomorrow night,you and I are going to be a Will you be free tomorrow什么意思? --------(be)you free tomorrow 要理由哦! Will you be free tomorrow?--__________( you are going to be somebody是什么意思