我记不起我说过什么了。

I can't remember what I said.

《柯林斯英汉双解大词典》

我脑子里是一片空白，记不起她的名字了。

My mind was a blank and I couldn't remember her name.

《牛津词典》

他吸毒和酗酒后兴奋过度，已经记不起他们了。

He was too high on drugs and alcohol to remember them.

《柯林斯英汉双解大词典》

I'm afraid I've forgotten the name of the robot that was on that show.

我已经记不起,剧中机器人的名字了

耶鲁公开课 - 死亡课程节选

And the answer is, really not all that many of them.

而回答是，真的记不起那么多。

耶鲁公开课 - 死亡课程节选