记住曾做过某事 remember doing sth

遗忘曾做过某事 forget doing sth

忘记了曾做过某事 forget doing sth

后悔曾做过某事 regret doing sth

记得曾经做过某事 remember doing

忘记曾经做过某事 forget doing ; forget t doing

记住曾经做过某事 remember doing sth

忘记记得曾经做过某事 Forget / remember doing sth