「forget」、「regret」和「remember」的用法

当 forget丶regret 和 remember 接的是动名词，动名词指的是比主要动词还早发生的动作。在这类句子中，动名词可以被现在完成分词取代，以让动作的次序更明确。forget 经常和 never 一起用于未来简单式。

I remember locking the door. = I remember having locked the door.
He regretted speaking so rudely. = He regretted having spoken so rudely.
I don't remember losing my glasses. = I don't remember having lost my glasses.
I will never forget meeting my boss for the first time.

当这些动词接的是不定词，不定词意指跟主要动词同时发生的动作，或比主要动词稍晚一点发生的动作。

This morning I remembered to lock the door. (= the remembering came first, then the locking)
Do not forget to buy some eggs. (= the not forgetting comes first, then the buying eggs)
I forgot to bring my books to school. (= first I forgot, then I didn't bring my books.)
We regret to announce the late arrival of the 12.45 from Paddington. (= our regrets come before the announcement)