Following are a number of back-translations as well as a sample translation for translators of Isaiah 66:7:

• Kupsabiny: “My city gives birth
  before (she) goes into labor.
  (She) bore a boy child
  without having felt pain.” (Source: Kupsabiny Back Translation)
• Newari: “‘Before she goes into labor,
  she gives birth;
  before the pains come upon her,
  she delivers a son.” (Source: Newari Back Translation)
• Hiligaynon: “The LORD still says, ‘Jerusalem will-be like someone-who-is-about-to-give-birth who is not even in labor yet she already gave-birth.” (Source: Hiligaynon Back Translation)