be going to do什么时态

be going to do什么时态 be going to do 是什么时态? be going to do属不属于将来时态? 关于将来时态 be going to; will do; be关于将来时态 be going to; will do; be about to; be doing 有什么不同 在哪种情况下用哪个.希望解释的仔细点 be going to和wao going to分别表示什么时态 was going to do sth,是什么时态? be to do.be going to do.be doing.will do.有什么区别? Be going to 句型是什么时态? 将来时态be going to是不是助动词? 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 able to do sth 更多用于什么时态? have to ;like to ;want to ;be going to ;would you;各用在什么时态? be going to,be to do,be about to do 有什么区别 be going to 等于什么? be going to doing 还是 to do? be going to do sth be going to do 后跟 will to be going to be about to do be to 有什么区别?