forget的用法：forget doing sth表示忘記做過某事例如： I forget closing the door.我忘記把門關了。（我關了門，但忘了。）forget to do sth表示忘記去做某事I forget to do my homework last night.我昨天晚上忘記做作業了。remember的用法：remember to do sth表示記住去做某事（還未做）Remember to turn off the light when you leave the room.在你離開房間之前，記得把燈關了。remember doing sth記得做過某事（已做過）I remembered turning off the lights.我記得我關上燈了。