哪be going to do 与will be doing 有什么区别?

be going to,be doing,will do有什么区别 be doing与be going to do有什么区别? be to do.be going to do.be doing.will do.有什么区别? will be doing,be going to do,will do ,有什么差别?be going to leav 区别be going to do/will do/will be doing/be to do be going to do/be doing/will do/be to do等 的区别~ will be 和will be doing 和be going to do 三者区别. 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 将来时态的区别be going to;will do;be doing;be to do;be about to do be doing (现在进行时表将来）和be going to do有什么区别 will与be going to有什么区别? be to do与will be doing