Following are a number of back-translations as well as a sample translation for translators of Joshua 10:12:

• Kupsabiny: “On the day that God made the people of Israel defeat the Amorites, Joshua cried to God while the people of Israel were watching. He cried, ‘You sun, stand still over Gibeon. Oh, moon, stand still in the valley of Aijalon.’” (Source: Kupsabiny Back Translation)
• Newari: “On the very day that the LORD gave the Amorites into the hands of the Israelites, Joshua prayed to the LORD before all Israelites and said,
  "O sun, stay put over Gibeon,
  As for you, O moon,
  stop above the Aijalon Valley!"” (Source: Newari Back Translation)
• Hiligaynon: “On the day that the LORD caused- the Israelinhon -to-win against the Amornon, Josue prayed to the LORD. Therefore, while the Israelinhon were-listening, he said, ‘Sun, stop over Gibeon! Moon, stop over the Valley of Ayalon.’” (Source: Hiligaynon Back Translation)
• English: “On the day that Yahweh enabled the Israeli army to defeat the groups who were descendants of Amor, Joshua said to Yahweh while the Israeli people were listening, ‘Yahweh, cause the sun to stand still over Gibeon, and cause the moon to not move when it is over Aijalon Valley.’” (Source: Translation for Translators)