be doing和be going to do和 be about to do no matter what和whatever尽量详细点

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 be doing和will be doing表示的是什么意思? be doing和be going to do的区别be doing和be going to do都表示将来但是二者的区别是什么?那一个更表示肯定? be going to do和be doing和want to do 三者之间的区别 英语be going to do还是doing 将来时有BE DOING么?be going to do和BE DOING是算在现在进行时表将来? be going to do 和will do和 be doing都能表将来吗? 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 doing和be going to do和 be about to do no matter what和whatever尽量详细点 be doing (现在进行时表将来）和be going to do有什么区别 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? 区别be going to,be about to,be doing,be to to be doing 和 doing的区别 be going to和will do和be about to do和be to do和be doing都表示将来,有什么区别.怎么用 be going to be/do和be doing 的肯定句 否定句 一般疑问句 （将来式）