be going to do going是动词加ing吗

be going to do sth be going to do 后跟 be going to be going be going to do going是动词加ing吗 be going to do里going是动词还是名词? 英语be going to do还是doing 用be going to do造句 be going to do结构的用法 be going to do 的被动语态 be going to do 是什么时态? be going to do什么时态 be to do和be going to do的区别 be going to do的句式里是不是be going作谓语,to do作状语? be going to 等于什么? be going to doing 还是 to do? be to do,be going to do,will do,be about to do的区别. be going to be与be going to do的区别there a partya is going to be b is going to have 用be going to do something造句 going to do something造个句子``谢谢 be going to do之外有be going to doing有这个句型么,