vt. & vi.懊悔，惋惜，遗憾 feel sorry about (a sad fact or event, a mistake one has made, etc.), and wish it had not happened or was not true

　～ choice　对选择感到后悔
　～ the ignorance　对无知感到遗憾
　～ the lost opportunity　对失掉的机会而感到惋惜
　～ half　有些遗憾
　～ much　深感遗憾
　～ bitterly　深感遗憾
　～ deeply　深感遗憾
　～ greatly　深感遗憾
　～ immediately　立即后悔
　～ sincerely　从心底感到后悔

　Men will say things when their blood is up which, and they regret after they have cooled down.　人们发怒时会说一些过分的话，当他们冷静下来又感到后悔。
　You'll regret this.　这事你将会后悔的。
　She refused their help and she didn't regret it.　她拒绝了他们的帮助，对此她并不感到后悔。
　I didn't regret the choice I had made.　我作了这个选择并不后悔。
　Don't tell the police about this—or you'll regret it!　此事不要报警，否则你会后悔的。
　He regretted the lost opportunity.　他为失去的机会而感到惋惜。
　He said his government regretted the incident.　他说，他的政府对这件事感到遗憾。
　I regret my child's ignorance.　我为孩子的无知感到遗憾。
　I regret my ignorance of the subject.　我很遗憾，对这个问题一无所知。
　Later on, I regretted my decision not to take the job.　后来，我后悔没接受这个职务。
　I don't mind living in the city, but I do regret my horse!　我不介意住在城里，可是我非常想念我的马。
　The mistake is much to be regretted.　这个错误很令人遗憾。
　His death was regretted by all.　他去世了，大家都很悲痛。
　We regret to inform you that we cannot help you.　我们很遗憾地通知您，我们无法帮助您。
　I regret to tell you that I won't be able to attend the ceremony.　我很遗憾地告诉你，我不能参加这一典礼。
　I regret to say that we cannot stay here any longer.　我很抱歉，我们不能再在这儿多呆了。
　I regret to say that we have no news for you.　我很遗憾，我们没有给你带来什么消息。
　I regret to tell you that I am willing, but unable.　我抱歉对你说了吧，我心有余而力不足。
　I regret to have told him the thing.　我后悔告诉了他这件事。
　I regret selling the house.　我后悔卖了房子。
　They regretted agreeing to the convocation of that meeting.　他们后悔同意召开这个会议。
　I half regretted having left the work unfinished.　这件工作我没有做完，感到有些遗憾。
　They regretted ordering these books from abroad.　向国外订购了这些书，他们很后悔。
　I don't regret telling her what I thought, even if it upset her.　我把想法告诉了她，即使她感到烦恼我也不后悔。
　To this day I don't regret having made that remark.　说了这话，我至今不悔。
　Afterwards he regretted having spoken to them about it.　后来他为对他们说过此事感到抱歉。
　He said he much regretted not being able to help.　他说，他帮不上忙，深感遗憾。
　I regret that I shall not be able to come.　很遗憾，我不能来。
　I regret that I cannot help.　很抱歉，此事我爱莫能助。
　I bitterly regret that we haven't been able to do better.　我们没能做得更好一些，我深感遗憾。
　I regret that I missed the concert.　这场音乐会没有赶上，我很遗憾。
　He regretted that he had left without saying goodbye to them.　他没有和他们告别就走了，感到很遗憾。
　He regretted that he had left home early.　他后悔那么早就离开家里。
　I now regret that I didn't work harder at school.　我后悔不应该在学校里不用功。
　I regret what I said.　我为自己说过的话感到后悔。
　I regret what I've done to her.　我后悔不该那样对她。
　It is much to be regretted that you can't join us in the trip.　你不能和我们一道去旅行，真是很遗憾。
　It is a matter to be regretted that he should have failed again in the examination.　他竟然又一次考试不及格，这是一件令人遗憾的事。

 ♣ I regret, I am afraid
　参见afraid条。
 ♣ 下面三句意思相同：
　
 ♣ 下面两个句子意思不同：
　

1. 她对过去的错误感到悔恨。
　［误］ She regretted for her past mistakes.
　［正］ She regretted her past mistakes.
　［析］ regret意为“悔恨”，是及物动词，后面直接跟宾语，不需加介词for.
2. 我很抱歉地通知你，我们不能给你提供工作。
　［误］ I regret informing you that we are unable to offer you employment.
　［正］ I regret to inform you that we are unable to offer you employment.
　我遗憾地通知你，你的申请没有成功。
　［误］ I regret informing you that your application has been unsuccessful.
　［正］ I regret to inform you that your application has been unsuccessful.
　我深深地后悔说了这些话。
　［误］ I deeply regret to say these words.
　［正］ I deeply regret having said these words.
　［析］ 表示“为将要做的事而遗憾”应该用regret to-v；表示“为已做的某事而懊悔〔遗憾〕”应该用regret v-ing.

1. regret being unable to-v中的being unable并不表示早于谓语的动作，而是表示对即将传达的不好消息表示遗憾。例如：
　I regret being unable to come〔to say〕 that I cannot come.　我不能来，甚为抱歉。
2. I regret having to...和I regret to have to都是用来宣布坏消息的，其中having to和to have to并无差别。例如：
　I regret having to tell you to leave〔I regret to have to tell you to leave〕.　很抱歉，我现在得叫你走。

U C 痛惜，懊悔，遗憾，失望，悔恨 feeling of sadness at the loss of sb/sth; feeling of annoyance, disappointment or repentance

　accept sb's ～s　接受某人的歉意
　express ～　表示遗憾
　feel ～　感到后悔〔遗憾〕
　have no ～　毫不后悔
　show ～　显得遗憾
　bitter ～　深为遗憾
　deep ～　深深的遗憾
　useless ～　无益的后悔
　a matter for ～　一件憾事
　to one's ～　遗憾的是
　refuse with much ～　婉言谢绝
　～ at　对…的遗憾
　～ at sb's action　对某人的行为感到遗憾
　～ for　为…遗憾，对…的后悔
　～ for one's mistake　对自己的错误表示后悔
　～ for sb's action　对某人的行为感到遗憾
　～ over　对…的遗憾
　～ over sb's action　对某人的行为感到遗憾

　Please accept my regret.　请接受我的歉意。
　I've never had any regret over anything I've done.　我从未对我所做过的事后悔过。
　He said he had no regret about leaving the university.　他说他不懊悔从这所大学退学。
　She showed much regret for her fault.　她对她的过失深感后悔。
　He expressed regret for what he had done.　他对他的所作所为表示后悔。
　A feeling of infinite regret came over him.　他突然产生了一种无限惋惜的感觉。
　I heard of his death with great regret.　我听到他去世的消息感到万分悲痛。
　I've expressed regret at the death of his father.　我对他父亲的去世感到十分悲痛。
　I feel no regret at her absence.　她缺席，我并不遗憾。
　The prime minister expressed her regret at the failure of the talks.　首相对谈判失败表示遗憾。
　Many would share in the regret at how time flies.　对于飞快流逝的光阴，许多人感到惋惜。
　We informed them with regret of our decision.　我们遗憾地把我们的决定告知他们。
　We heard with great regret that you had failed the examination.　得知你考试不及格，我们深感惋惜。
　We decided with some regret that we could not offer him the job.　我们遗憾地决定，我们无法给他这个职位。
　I declined with much regret your kind invitation.　很遗憾，我不能接受您的盛情邀请。
　Much to my regrets, I am unable to accept your invitation.　我很抱歉，我不能接受你的邀请。
　She could not come but sent regrets.　她不能来，但寄来了辞谢信。

 ♣ regret, remorse
　这两个词的共同意思是“懊悔”。其区别是：regret多指对已做或没有成功的事表示懊悔或不愉快，有时则指对自己无能为力的事感到懊悔；remorse多指烦恼或问心有愧的精神折磨，常含有自责、悔恨之义。例如：
　The boy was filled with remorse for the worry he had caused his mother.　这个男孩因为使他妈妈难过而自责。

　不能赴约，谨致歉意。
　［误］ Please accept my regret at having to refuse the invitation.
　［正］ Please accept my regrets at having to refuse the invitation.
　［析］ regret作名词指由于谢绝而表示的“歉意”时，用复数形式。

　［同义词］ v. bemoan, lament n. concern, grief, sorrow
　［词源］　中古英语regretten<古法语regreter（哭泣）