i regret that i have to notify you of so many orders being cancelled at the same time.为什么be要加ing,这是被动语态的什么时态

I have no regret about... 非常感谢Know you i'm not sorry,i regret that i have met you I hate you.I regret that i have met you ever.Im a loser I only regret that I have but one life to lose for my love I only regret,that I have but one life to lose for my country. 请问I regret that I have beated him 怎么回答?（口试） I regret Designer,i miss you,I have missed you ,I regret I only regret that i have but one life to lose for my dear cha chao是 chao chao ,打错了.I only regret that i have but one life to lose for my dear chao chao I only regret that I have but one life to lose for my country.中的“but相当于“only吗? ____ is that I have promised to make friends with the dishonest girl.A.The only thing what I regret B.What I regret most C.All what I really regret most D.What that I regret most 请问A错在 哪里 i regret saying that he is not brave enough I will never regret 英语翻译I don't regret what I have selected and what I have done. I don't regret ______ even if it might have upset her.A:to tell her what I thoughB:to have told her that I thoughtC:telling what I thoughtD:telling her what I thought为什么选D啊, ______ is that I have promised to make friends with the dishonest girl.A.The only thing what Iregret B.What I regret mostC.All what I really regret most D.What that I regret most其他答案为什么不行 I LONG REGRET THAT I HAVE BAT ONER LIFE TO LUSE FOR MY XIAOHEI,是什么意思啊?谢谢拜托大家,是朋友让翻译的 my parents expect me to stay at home.as a ---,i regret to tell you that i have to delay our plans