请用"regret to do." "needn't have done." "remind sb of sth."各造一个句子!谢

请用regret to do. needn't have done. remind sb of sth.各造一个句子!谢 regret to do和regret doing有何区别 Regret to do和regret doing有何区别 [紧急求助]regret doing sth.与regret to do sth. regret to do 和热regret doing 有什么不同? Never regret to do what you 有没有regret not to do regret to do sth ,regret doing sth ,regret having done sth有什么区别? regert到底怎么用啊 regret+doing sth 和regret to do sth 感觉意思都差不多啊 They failed to pass the exam last time,I regretted___.A.being unable to help B.not to be able to help请解释为什么.regret to do 和 regret doing 的区别 Regret to do sth 与Regret doing sth有什么区别? regret not to do sth和regret doing是否可以替换 问个英语问题,regret to do 与regret doing的区别 regret的几个词组的意思是什么regret to do的意思 关于regret的词性和用法regret可以做动词和名词一般说regret to do/regret doing我想问的是 be regret for doing sth.例如：I'm not regret for having done it. regret to do/doingregret to do通常用于sb regret to tell/say that...regret doing放到句子中通常要变regret为过去式吗?thanks!补充一个问题pretend doing还是pretend to do谢 用to one's regret造句.快,.. 高一预科英语题目1、I regret not being able to help youshe regretted having missed the filmI regret to inform you that your application has been refuesd上句中为什么有些用regret doing 有些用regret to do 有什么区别2、He_____ t