forgot or forgotten

Hmm... I hate to disagree with your dictionary Mr. Sam but um we would definately use forgotten. Heck, you're the ones who got rid of the word gotten. If we kept that despite all objections, do you really think that we would discard forgotten. And as for out of the window, I guess it just isn't really that necessary to use the word of in that sentence.

''I hate to disagree with your dictionary Mr. Sam''

feel free to disagree with the best American dictionary: http://m-w.org/