英文文法问题我想问的是I do,I will do,I am doing ,I am going to do 这四个有什

1.I do 的意思是我会要做这件事,不过你的说法太简略了,我只能大概说一下,如I do my homework.後面有everyday,in the morning,主词後面有always,never等等,就可以这麼用.
2.I will do 意思是说我会做这件事,但是不肯定的,有可能因为某些突发状况而没有办法去做
可用於承诺(promise)愿意(offer)预测(prodiction)
3.I am doing 的意思是说我已经在做了,像是我正在写作业I am doing my homework.而你要什麼时候用呢?假设你看到句子後面有now,a moment句子前面有Look!,Listen!这些字出现的话你都必须使用B动加进行式
4.I am going to do 意思是说我现在就要去做这件事,而有些时候你一定要放这个字,如accident(意外)举例Look!We are going to hit that building.可用於state a plan or intention(计画做某某某时)What are you going to buy for his birthday?I am going to buy a toy car for him.最主要的,如何判断我所说的will和be going to V.还是要看题目所说再来按段用法,像我上面打得举例.
以上,有甚麼问题再问吧!

i do 是一般现在时 i will do用于我将要做某事 为一般将来时 i am doing是现在进行时 i am going to do也是一般将来时 be going to do 等于will do
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