forget doing/to do forget doing/to do

forget to do　忘記要去做某事。　(未做)

　　forget doing　忘記做過某事。(已做)

　　The light in the office is stil on. He forgot to turn it off.

　　辦公室的燈還在亮著，它忘記關(guān)了。(沒有做關(guān)燈的動作)

　　He forgot turning the light off.

　　他忘記他已經(jīng)關(guān)了燈了。　 ( 已做過關(guān)燈的動作)

　　Don't forget to come tomorrow.

　　別忘了明天來。 (to come動作未做)

　　典型例題