My brother has never been abroad before中为什么要用has never been 为什么要用has never been has和been

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My brother has never been abroad before中为什么要用has never been 为什么要用has never been has和been
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My brother has never been abroad before中为什么要用has never been 为什么要用has never been has和been
My brother has never been abroad before中为什么要用has never been
为什么要用has never been
has和been

My brother has never been abroad before中为什么要用has never been 为什么要用has never been has和been
这是个现在完成时态的句子,用has never been表示My brother 从过去某时间到现在为止从来没有出过国.注意Has been是be的现在完成时形式,而abroad是副词,在国外.整句话从句子结构上看是主系表结构

表示从过去到现在的状态!

用has never been表示My brother