忘記的英文單詞是forget。
forget的用法是：
1、forget to do表示忘記還沒做的事情，例如I am sorry I forgot to return the library book，意思是對不起，我忘記歸還圖書館的書了。
2、forget doing表示忘記已經做過的事情，例如He forgot going to Shanghai with his parents when he was five years old，意思是他忘記了五歲時曾跟父母去過上海。
3、forget that表示從句，例如Never forget that you are loved，意思是永遠不要忘記你所愛的人。
