(1) remember to do sth. 记住要做某事 remember doing sth. 记住曾做过某事
(2) forget to do sth. 忘记要做某事 forget doing sth. 忘记曾做过某事
(3) regret to do sth. 后悔(遗憾)要做某事 regret doing sth. 后悔(遗憾)曾做过某事
(4) try to do sth. 设法要做某事 try doing sth. 做某事试试看有何效果
(5) mean to do sth. 打算做某事 mean doing sth. 意味着做某事
(6) can’t help to do sth. 不能帮助做某事 can’t help doing sth. 禁不住做某事
(7) go on to do sth. 做完某事后接着做另一事 go on doing sth. 继续做一直在做的事
注：stop to do sth. 与stop doing sth.也不同，前者指停下来去做某事，后者指停止正在做的事，但stop to do sth. 中的不定式不是宾语，是目的状语。