be going to 类型的句子是现在进行时吗?具体什么时态?

be going to 类型的句子是现在进行时吗?具体什么时态? be going to do 的类型的句子是固定用法还是现在进行时?比如：the teacher is going to test you. 用be going to 完成句子.Are the students going to be a postman?和Are the students going to be postmen?哪个是对的 关于 be going to 的用法例句：I am going to Australia.这个句子的谓语是什么?为什么?be going to 是情态动词吗? where are you going 是哪种时态?where are you going 我觉得这里go 是不及物动词,句子就是个现在进行时..不过,be going to 这两个很相似,那个理解是,准确的.. I am going to Shanghai .和I am going to visit my grandmother.两个句子里的be going to 是不同的吧?第一个应该是现在进行时表将来的用法,而后面这个应该是（be going to +动词原形）表示计划、打算好的事情 英语：be going to do 和have to do 能否一起出现在一个句子里 用be going to的句型造5个句子 用be going to 造不同人称的句子 对There is going to be 的句子怎么提问 We going to 算不算BE going to结构的句子 找英文歌 要有将来时的句子 be going to和will be最好是简单的 Everything is going well.请问这里go well为什么用going 现在分词的形式?是be going to的形式吗? we are going to have a metting里面的be going to是做句子的什么成份.我要的是主谓宾分别是哪几个 用be going to写句子 现在进行时 将来进行时 结构区别be going to..be doing...是这样的吗?i am cooking.(be doing)i shall be cooking tomorrow morning.(不是be going to...) be going to和be going to do的区别?e.g They'er going to a police station.be going是现在进行时.可为啥要加to呢?be going to do不是将要进行时吗?都很好！我该如何抉择？ is going to be 和 are going to be的用法区别注意是用法!急~