Following are a number of back-translations of John 3:18:

• Chol: “He who believes will not have to pay for his sins. He who does not believe, he is already beginning to pay for his sins because he does not believe on the name of the only Son of God.”
• Yatzachi Zapotec: “The person who trusts in the Son of God, it is already determined about him that he does not have guilt, but the person who does not trust in him it is determined about him that he does have guilt. . .” (Source for this and above: M. Larson / B. Moore in Notes on Translation February 1970, p. 1-125.)
• Uma: “People who believe in the Child of God, they are not punished/condemned. But people who do not believe, it is clear that they will be punished/condemned by God, because they do not want to believe in that Only Child of God.” (Source: Uma Back Translation)
• Yakan: “Whoever trusts in the Son of God will not be hit by the judgment of God. Those who do not trust, have already been hit by the judgment of God because they do not trust in Isa, the only Son of God.” (Source: Yakan Back Translation)
• Western Bukidnon Manobo: “Anyone who believes in me, he will not be punished by God, but those who do not believe in me, it is known beforehand that they will be punished. Because as for me, the only child of God, they have not believed in me.” (Source: Western Bukidnon Manobo Back Translation)
• Kankanaey: “Therefore those who believe in him, they will emphatically not be punished. But those who don’t believe, they have already been sentenced/condemned to be punished, because of-course they didn’t believe in the only Child of God.” (Source: Kankanaey Back Translation)
• Tagbanwa: “As many as will believe-in/obey and trust-in/rely-on him will really not be sentenced with a sentence of punishment. But those who don’t believe/obey, they have already been sentenced to be given punishment, because they are not believing-in/obeying this one-and-only Son of God.” (Source: Tagbanwa Back Translation)
• Tenango Otomi: “He who believes the Son of God will not be sentenced. But he who does not believe, already is sentenced because he does not believe in the only Son of God.” (Source: Tenango Otomi Back Translation)