Following are a number of back-translations as well as a sample translation for translators of 1 Kings 9:21:

• Kupsabiny: “There were other people whom Solomon forced to do for him work. Those people are/were the Amorites, Hittites, Perizzites, Hivites, and Jebusites who remained in the land of Israel and the people of Israel were not able to destroy them completely. Those people are still slaves/servants to this day.” (Source: Kupsabiny Back Translation)
• Newari: “These were descendants of ethnic groups that the Israelites did not completely destroy. It was these that Solomon caused to do forced labor without pay. They are like that even today.” (Source: Newari Back Translation)
• Hiligaynon: “There were still people who were-left in Israel who were not Israelinhon. They were the descendants of Amornon, Hithanon, Periznon, Hivhanon and Jebusnon, who were not all killed by the Israelinhon when they took-by-forced the land of Canaan. Solomon made them slaves and forced to work, and they remained slaves until now.” (Source: Hiligaynon Back Translation)
• English: “Their descendants still lived in Israel. It was those people whom Solomon forced to become his slaves to build all those places, and they are still slaves.” (Source: Translation for Translators)