to close
forget/remember to do sth.忘记/记住做某事
Don't foget to close the door.别忘了关门
Remember to colse the door!记住关门!
forget/remember doing sth.忘记/记住做了某事
I forget closing the door.我忘了已经把门关上了.
I remember closing the door.我记得已经把门关上了.