Question

gerund / to-infinitive

Answer 1

They regret not inviting Ann to go to the cinema with them as Ann is very angry now. 你已解释
‘regret + gerund = 后悔做过某事 (事情已发生) regret + to-infinitive = 对将要做的事情感到遗憾” 我只有少少补充 Ann is very angry now. Ann 为什么生气? 因为她是无被邀请去看电影
可能感觉上被人”飞” 或者被人忽略 (ignore)
觉得他们当她”无到”. 看电影已发生了
不是将要做的事情. 其他的例子: Ann does not regret leaving her boyfriend as she has just found out that he has been unfaithful to her. 离开男朋友这事已发生
知道男朋友碧衫衡"拈花惹草" 是刚刚知道 Ann does not regret ditching her boyfriend as she has just found out that he has been a womanizer for years. Note: ditched her boyfriend = 把她的男朋友甩了 womanizer = 沉溺于女色的人；玩弄女性者 We regret to inform you [=we are sorry to tell you] that we have offered the job to someone else. inform you 不是以前 inform you
已发生的 action
实际上现在通知你 2014-12-24 07:12:55 补充： regret doing something = to feel sorry about something you have done and wish you had not done it regret to say/inform/tell = to feel sorry to let you know ( ~ used when you are giving someone bad news) 2014-12-24 07:45:26 补充： 分别是一个是已发生或动作已完成
对做了的事感悔做到遗憾 另一个还塌袭未发生
将要做或跟住会做
未做之先
感到遗憾
参考: Yahoo Dictionary
Longman English Dictionary