Following are a number of back-translations as well as a sample translation for translators of Proverbs 27:1:

• Kupsabiny: “Do not brag about tomorrow,
  because you do not know what will happen.” (Source: Kupsabiny Back Translation)
• Newari: “Do not go on boasting about tomorrow.
  because you do not know
  what will happen tomorrow.” (Source: Newari Back Translation)
• Hiligaynon: “[You (sing.)] do- not -boast about what you (sing.) will-do tomorrow, for you (sing.) do- not -know what will-happen to you (sing.) tomorrow.” (Source: Hiligaynon Back Translation)
• Kankanaey: “Do not boast-about what you (sing.) will do tomorrow, because you (sing.) do not know what will happen each day.” (Source: Kankanaey Back Translation)
• English: “Do not boast about what you will do tomorrow,
  because you do not know what will happen on any day.” (Source: Translation for Translators)