forget,like,love,enjoy,hate,remember,start,begin,stop,practise,finish,keep,continue,try,advise能不能把意思写上，然后原形和改变之后的都写上 谢谢对不起，我理解错了laugh-laughing-大笑 ;sleep-sleeping-睡眠 ;watch-watching -观察;sing-singing -唱歌;clean-cleaning-打扫;read- reading -阅读;drink-drinking-喝饮料;jump- jumping -跳跃;see-seeing-观看;look- looking -有...样子的