It is useless to worry about the things that had already happened.如何翻译?

It is useless to do?doing? It is useless doing 或to do 有什么区别 it is no useless to do=it is no use doing It is useless to c___,don't talk about it any more , (1/2)____that the train is gone,it is useless to wait. A Seen B see it is useless 后跟动名词还是不定式 whatever ,it is useless 的翻译 it is useless后面加什么? It is useless to worry about the things that had already happened.如何翻译? but it is useless to do this now that you have become a prisoner 中文意思 Don,t want to lose you.My heart is so sad.It is useless.Really very painful! think 是不是及物动词,那么句子''I think it is useless''中''it is useless'' 充当什么成分谢谢了, i found it useless doing还是to do 求翻译 It's useless to be resonable in love It's useless后面是doing还是to do? It‘s useless to argue with him It‘s useless arguing with him 为什么我们老师说都对的 (1/2)____that the train is gone,it is useless to wait.A Seen B see这和非谓语动词有关么。 I think it's useless ___ when we have made mistakes.All we can do is to correct themA complaining B complained C having complained D being complained