英语一般将来时begoingtodo和begoingtobe有什
begoingtodo和begoingtobe有什么区别
be going to do 的意思就是说"do"指的是动词原形， 比如be going to go home,be going to play football, go 和play就是动词原形。be going to be 中的"be"就是 be动词， 是am、is、are的原形。