谁可以帮我归类下动词的用法就是什么时候要加doing,什么时候是动词原形...(初一的)

首先，like,prefer,mind,stop,start,continue,start 后加ing
另外，助动词，如can，should,maybe,ought to,后加do
不懂就问我哈

1.enjoy,finish,mind,suggest后面必须要用动词的-ing形式。
如：I enjoy learning English.
I finished reading this book.
I don't mind opening the door for you.
I suggest buying a new bike.
2.can/may/must/will/shall/should后边接动词原形。
如：I can do that by myself.
May I come in?
He will go to school at 7.
We shall start soon.
you should eat much.

这太麻烦了，我建议你买一本语法书研究研究。

are/is doing sth
enjoy doing
好了

1.语态是现在进行时结构：主语+动词（doing）+…………
2.两个动词再一起时后面的动词（是doing）例：i like reading.(我喜欢读,like和read都是动词相连read加ing)
3.stop doing something(停止作某事） keep doing something(继续做某事）…………
4.两个动词表并列关系 例如：i am reading (and) writing .
5.在一般现在时中,第一.二人称和第三人称复数的情况下动词保持原形
6.在不定式后面的动词保持原形
7.语态是将来时时,动词保持原形
8.情态动词后动词是 原形