Following are a number of back-translations as well as a sample translation for translators of Ezekiel 19:6:

• Kupsabiny: “When that one had grown up and stood firm,
  galloping around with other lions
  it learned to hunt
  and eat people.” (Source: Kupsabiny Back Translation)
• Hiligaynon: “‘When the mother of this lion realized that her longing for her child was-not-materialized/[lit. were-disheartened/frustrated], she caused-to-become-big again her other child and he/it became a strong lion also. He went-with the other lions and he/it was-able-to-learn to-devour, and eats person/man.” (Source: Hiligaynon Back Translation)
• English: “He hunted along with other lionsfor animals to kill,
  and he even learned tokill and eat people.” (Source: Translation for Translators)