He had forgotten to tell President Lincoln or War Secretary Stanton that Lee had surrendered.

VOA: special.2009.12.24

If you have not seen the calculus that I'm about to use on the board, or more likely, if you've forgotten it since high school, don't panic.

如果你们没有见过我将要,在板书上写的表达式,或者说,高中毕业你们就忘了,没关系

耶鲁公开课 - 博弈论课程节选

Let's say that you are in a movie theater and you forgotten your sweater or jacket

假设你在电影院，假设你忘记带上你的毛衣或者外套了，

I'm about to 课堂 - SpeakingMax英语口语达人