句子语法不对.要这样改：success is very important to a person who has never succeeded before或success is very important to a person who has never been successful before1. the person 要改为 a person .a ...have been done这个是错误的语法吗？我只知道have been doing 是表示动作从过去某时一直在持续，这里的successful好象不是一个动词呀have been done 这个结构本身没问题，这是现在完成时的被动语态的动词形式， 而succeed作为不及物动词是不可以用于被动式的success 名词 successful 形容词 successfully 副词 succeed 动词has never been successful 是be successful 这一系表结构用于现在完成时