forget的过去分词是forgotten。

forgotten：忘记，遗忘。

例句：

1.But not forgotten.但不会被忘记。

2.The letter alludes to something now forgotten.这封信略为提到某些现已被忘记了的事情。

3.As time went on, Mary began to wonder if John had forgotten their date.随着时间一分一秒地过去，玛丽开始怀疑约翰是否忘记了他们的约会。

4.Maybe this is the most obvious tip of all, but it is also one of the most frequently forgotten.可能这是所有技巧中最显而易见的一个，但是它也是最容易忘记的一个技巧。

5.We have forgotten to love our selves.我们已经忘记去爱自己。