那些单词后面+ving

1.现在进行时态，be动词+Ving，如She is swimming now!
2.过去进行时态，was/were+Ving
如When my mather asked me,I was listening to the music.
3.动词做名词也要加ing.如 Swimming is my favorite sport
这里的Swimming指游泳这项运动，所以要加ing
4.like ding,表示喜欢做某事。如I like reading books .
stop ding停止做某事。如Teacher is coming,please stop talking
5.介词后也要加ing。如MP3 is used for listening to the music.

现在进行时态
过去进行时态
动名词做主语时
like,finish,keep ,stop,prevent,mind
所有介词
有些短语，如go on doing sth.等等

一切的介词

去掉不发音的e＋ing
比如：giving loving 等