被动语态be done   

 the goods sell well/ smell delicious /

1.时态   2.语态（被动）

现在完成时  have done  

      被动 have been done

过去完成时  had done   

      被动 had been done

现在进行时 is doing      

      被动 is being done(made)

一般过去时 did         

      被动  was/were done(founded)

一般现在时 do/does      

      被动is/are done(cleaned)

一般将来时 will do       

      被动  will be done

is being repaired     

areneeded   

was destroyed

will begiven     

have been learned