Following are a number of back-translations as well as a sample translation for translators of Job 16:6:

• Kupsabiny: “Even when I try to speak, the pain does not subside,
  or if I wish/want to be quiet where it hurts/is aching does not become quiet.” (Source: Kupsabiny Back Translation)
• Newari: “Yet if I speak, my grief and suffering will not be less.
  Even if I keep silent, my pain will not leave me.” (Source: Newari Back Translation)
• Hiligaynon: “But for now, my pain continues even-though whatever I might say. And if I will- also/as-a-matter-of-fact -keep-silent this still would not disappear.” (Source: Hiligaynon Back Translation)
• English: “‘But now, if I talk, my pain does not decrease,
  and if I am silent, my pain still certainly does not go away.” (Source: Translation for Translators)