A、含义不同remember to do记住去做 remenber doing记得做过
regret to do遗憾的做 regret doing懊悔作了
forget to do忘记去做 forget doing忘记做过
try to do努力去做 try doing试试去做
help to do帮助做 can't help doing禁不住
need to do客观需要 need doing需要被做
want to do主观想要 want doing需要被做
stop to do停下去做（目的）stop doing停止做
go on to do接着做 另一件事 go on doing继续做
B、差别细微 doing表抽象一般,to do表具体就要发生
like doing like to do
love doing love to do
hate doing hate to do
prefer doing prefer to do
be afraid of doing be afraid to do
C、无差别 start,begin.continue,intend,cease.