Following are a number of back-translations as well as a sample translation for translators of Isaiah 33:12:

• Kupsabiny: “Your people shall be burned
  to be destroyed completely,
  or burn like thorn bushes that have been cut down
  and thrown into the fire.” (Source: Kupsabiny Back Translation)
• Newari: “People are about to burn like charcoal.
  They are about to burn like bushes burn that have been cut down.” (Source: Newari Back Translation)
• Hiligaynon: “You (plur.) will-be-burned until you (plur.) will-become like a lime. You (plur.) will-become like the thorny bushes which have-been-cut-down and burned.” (Source: Hiligaynon Back Translation)