Well, try to recollect--can't you?

好吧，试着回忆一下——好吗？

youdao

I tried hard to recollect what I saw just before the accident.

我苦苦追忆着出事前见到的一切。

《新英汉大辞典》

I was unable to recollect the names.

我回想不起那些名字了。

youdao

One is called the twenty-four hour recall and that's either done by a computer, or done by a trained interviewer who would sit down with you and say, 'Let's reconstruct everything you've eaten in the last twenty-four hours.' And so then you have to recollect everything you ate in the last twenty-four hours.

其中之一被称为24小时回顾法,可由计算机完成,也可以由专业测试人员,坐在你面前并对你说,"让我们记录所有,最近24小时你所吃的东西",然后你需要回忆,最近24小时内吃了什么

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

This led to my failure to recollect whether I approved an arms shipment before or after the fact.

CNN: Iran-Contra Affair

Remember, this was 12 years ago, and I was trying to recollect this in the middle of an already busy planned day.

MSN: Cain accuser got a year's salary in severance pay

It's all very difficult to recollect.... it all happened so quickly.

BBC: Barbados shooting: Philip Prior speaks of ordeal