1、一般在词尾加ing
help-helping 帮助
look-looking 看
plant-planting 种植
work-working 工作
2、以不发音的e结尾的词,先去e,再加ing
live-living 居住
hope-hoping 希望
change-changing 变化
3、动词以y结尾时直接加ing
play-playing 玩
stay-staying 逗留
study-studying 学习
carry-carrying 运送
4、以ie结尾的动词,先将ie变为y,再加ing
die-dying 死
lie-lying 躺;撒谎
tie-tying 绑
5、以重读闭音节结尾,末尾只有一个辅音字母的词,要双写这个辅音字母,然后再加ing
drop-dropping 掉落
begin-beginning 开始
run-running 跑
prefer-preferring 更喜欢
6、少数双音节动词,尽管重音不在后面,可以双写末尾的辅音字母,然后再加ing
travel-traveling (美语)旅行
travel-travelling(英语)旅行
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