have been done 和 have been doing

have been done 和 have been doing
劍橋中級英語語法裡麪有一個單元，給了一個例句：They have been married for 20 years.用了have been done這個形式，爲什麽不是They have been marring for 20 years?或者They have married for 20 year.而用了被動語態have been done，非常疑惑

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匿名網友

第一個是被動形式,已經被完成
第二個是主動形式,一直在做,可能停止,也可能繼續做下去劍橋中級英語語法裡麪有一個單元，給了一個例句：They have been married for 20 years. 用了have been done這個形式，爲什麽不是They have been marring for 20 years? 或者They have married for 20 year. 而用了被動語態have been done，非常疑惑這個關鍵在於marrybe married with someone 表已婚marrying (with) someone 表正在結婚可[kě]以理解爲marry是瞬間的不是一直在嫁如果因爲marry是瞬間動詞，是不是衹要是瞬間動詞，have been doing 都要變成have been done的形式？

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