这几个比较常用，remember to do sth 记得去做某事(还未做)remember doing sth 记得做过某事forget to do sth 忘了去做某事forget doing sth 忘了做过某事stop to do sth 停止这件事去做另外一件事stop doing sth 停止做这件事start to do sth 开始做另一件事start doing sth 开始继续做这件事
