regret to do和regret doing有何区别

regret doing和regret having done有何区别 regret doing和regret to do的区别 regret to do 和热regret doing 有什么不同? regret to do/doing regret to do 和doing 以及not doing 有什么区别 Regret to do sth 与Regret doing sth有什么区别? regret doing和regret having done 有什么区别 regret it 和regret doing it有区别吗~ regret to do sth ,regret doing sth ,regret having done sth有什 问个英语问题,regret to do 与regret doing的区别 regret to have done 与regret doing 有什么区别.肯定有区别 [紧急求助]regret doing sth.与regret to do sth.