be going to doing这种用法有吗?

be going to doing这种用法有吗? 英语be going to do还是doing be doing be is going to will用法的区别 be going to,be doing,will do有什么区别 will,be going to,be doing用于一般将来时的区别 be doing与be going to do有什么区别? be doing和be going to的区别和用法!be doing和be going to的区别和用法 be going to 等于什么? be going to doing 还是 to do? be going to be,will be和be doing在用法上有什么区别,什么时候用什么 be going to be doing和will be doing表示的是什么意思? 用be going to 区别be going to,be about to,be doing,be to 用be going to have been to to do be doing 分别造三个不同主语不同句式的句子 be going to do之外有be going to doing有这个句型么, I’m doing my homework now.（用be going to改写句子） be going to doing有这个用法吗 有be late doing 这种用法吗?有这样一个句子：Tell your friend you are going to be late meeting him.请高手指教. 谁能剖析一下 be going todo/be todo/be doing谁能剖析一下 be going to do/be to do/be doing他们的区别是什么