Don't forget what we talked about last night. 不要忘了我们昨天说的事情。

　　We've forgotten who he is. 我们忘了他是谁了。

　　I forgot how much I love driving. 我都忘了我有多么喜欢开车了。

　　I always forget how beautiful you are. 我经常会忘了你有多么漂亮。

　　Did you bring the items I wanted? 你把我要的东西带来了吗？

　　I'm sorry, I forgot what you asked me for. 很抱歉，我忘了你跟我嘱咐的东西了。