rememberdoing/todo

remember to do 記得去做某事　　　　 (未做)
    remember doing　記得做過某事　　　 (已做)
    Remember to go to the post office after school.
    記著放學(xué)后去趟郵局。
    Don't you remember seeing the man before?
    你不記得以前見過那個(gè)人嗎?