我忘了带钱包

I’m not advising you to throw away your makeup or forget about your appearance.

我不是建议你扔掉化妆品，或者不修边幅。

I forgot my purse. 我忘了带钱包。

I’d forgotten the keys, which didn’t help matters.

我忘记带钥匙了，这让情况更糟。

I clean forgot about calling him.

我把给他打电话的事忘得一干二净。

《牛津高阶英汉双解词典》

My husband asked why I couldn’t just forget about dieting all the time and eat normally instead.

丈夫问我为什么就不能不整天想着节食，转而正经吃饭。

If I lose this job, we can forget about buying a new car.

要是我丢掉这份工作，我们就别想买新车。

‘I was hoping you might be able to lend me the money.’ ‘You can forget that!’

“我希望你能借钱给我。”“打消这个念头吧！”《牛津高阶英汉双解词典》

Have you forgotten about that money I lent you last week?

你忘记上星期我借给你的那笔钱了吧？

《牛津高阶英汉双解词典》

forget (about )doing sth忘记，忘记做; 不再想；不再把…放在心上; 不再考虑…的可能;打消……念头

以上经典例句说明：forget (about )doing sth所接的事情可以是未做的，也可以是已经做过的。