Following are a number of back-translations as well as a sample translation for translators of Job 30:26:

• Kupsabiny: “But when I was expecting/waiting for good things,
  trouble and darkness came to me.” (Source: Kupsabiny Back Translation)
• Newari: “I had hoped that good [things] would happen, but instead of that, evil.
  [I] had hoped for light, but darkness came.” (Source: Newari Back Translation)
• Hiligaynon: “But when I hoped that good will-be-done to me, bad was-done to me. I looked for the light, but darkness came to me.” (Source: Hiligaynon Back Translation)