had been doing

意思翻译 现在完成进行时 相似词语短语 had been───已经（过去完成时） had been done───过去完成时的被动语态 had been sold───已经被卖掉了 had never been───从来没有……（been是be的过去分词） had been on───一直在 has been doing───到现在为止一直进行（现在完成进行时） been───v.是，有（be的过去分词）；n.(Been)（美）贝恩（人名） had───aux...