动名词的规则变化

1 一般情况下，直接在动词后加－ing （现在进行时）work working study - studying

2 动词以不发音的－e结尾，要去－e加－ing take - taking make - making

3 重读闭音节的动词，要双写词尾字母，再加－ing cut - cutting put begin

4 以－ie结尾的动词，把变成y再加－ing lie - lying tie - tying