remember to dou记得要做某事,事情还未做
remember doing 记得已经做了某事,事情已经做了
forget to do 忘记做某事
forget doing忘记做过某事
start to do 开始
start doing 开始
begin to do 开始
begin doing开始
stop to do停止...
remember to dou记得要做某事,事情还未做
remember doing 记得已经做了某事,事情已经做了
forget to do 忘记做某事
forget doing忘记做过某事
start to do 开始
start doing 开始
begin to do 开始
begin doing开始
stop to do停止...