He has never been abroad before.这里的been是什么

He has never been abroad before.这里的been是什么 He has never been abroad before 分析下句子结构 he has never been abroad是什么时态 为什么有been My brother has never been abroad before He has never been abroad before.这句话的主谓宾结构是怎么分的. 新概念英语 My brother has never been abroad before 这里before为什么在后面 He has never been abroad,has he?怎么翻译 解释句子成分:My brother has never been abroad before." i have never been abroad before 这个before是什么词性 My brother has never been abroad before中为什么要用has never been "I have never been abroad .He has never been abroad,either." my brother has never been abroad before 这句话 是这个has been to去某