It could've been worse.这里COULD 后面还能加完成时态呀?是怎么个用法呢.

是If could be worse还是It could be worse? IT COULD BE WORSE怎么样 It could't be any worse. could 用法 she could hardly speak english 3 years ago这里的could是 could\'t be worse 怎么翻译 Nothing could have been more annoying.这里用的是现在完成进行式表示的是什么意思? It could have been 谱子 时态Nothing could have been more annoying If could be worse you could do worse It could be worse---为什么是不幸中的万幸的意思? Could you tell me （how much it cost）?这里的could什么时态?不是表示客气么?