be doing表将来与be going to区别?不要抄的?

be doing表将来与be going to区别?不要抄的? 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 doing (现在进行时表将来）和be going to do有什么区别 be going to表将来、be doing表将来和will/shall+do三者间的区别如题! be going to do和be doing 都能表将来,区别是什么?will do 和be doing表将来的区别是什么? will,be going to do,be doing表将来will 与 be going to do和be doing都表将来 区别是什么?如题：i ___ 14 years old next year.这里填be going to be 但为什么不用will? be doing表示将来 be to do;will do;be going to do;be doing;be about to do;这些表将来的都有什么区别呀 be going to do 和will do和 be doing都能表将来吗? 将来进行时有be going to be doing这个表达形式吗 This weeked she is going to go to BeiJIng 与 This weeked she is going to BeiJing哪个正确?be going to表示将来,be+doing 也可以表示将来 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 doing与be going to do有什么区别? be doing表示将来是什么意思 be about be going to be/do和be doing 的肯定句 否定句 一般疑问句 （将来式） 请问be going to+动词原形与现在进行时表将来有什么区别 be going to do 和be doing用法的区别?最好能举出例子～我说的是当两者都表将来时态时的差别！ be going to ,will ,will be doing 三种将来时有什么共同点,又有什么不同点?