Following are a number of back-translations as well as a sample translation for translators of Ezekiel 28:12:

• Kupsabiny: “‘Ezekiel, speak to the king of Tyre in/through a song saying, ‘The God of power is saying: You were the one who was righteous, you were wise and you were very beautiful.” (Source: Kupsabiny Back Translation)
• Hiligaynon: “‘Man, you lament concerning the king of Tyre. Tell him that I, the Lord GOD, say: In time-past you were an example of being-perfect. You were-wise and very beautiful.” (Source: Hiligaynon Back Translation)
• English: “‘You human, sing a sad/funeral song about the king of Tyre. Say to him, ‘This is what Yahweh the Lord says:
  ‘You thought that you were completely perfect,
  extremely wise and handsome.” (Source: Translation for Translators)