Following are a number of back-translations of Acts 2:16:

• Uma: «What has happened here, is the fulfillment of what the Lord God foretold ahead-of-time long ago, with the lips of Nabi Yoel, like this its sound:» (Source: Uma Back Translation)
• Yakan: «But this that you see now,’ he said, ‘has been foretold by Nabi Joel and now it is fulfilled. He said,» (Source: Yakan Back Translation)
• Western Bukidnon Manobo: «This is what was prophesied long ago by the one inspired by God, Joel, because he said,» (Source: Western Bukidnon Manobo Back Translation)
• Kankanaey: «What was-done to us (excl.) a short-while-ago, that was what Joel prophesied long ago saying,» (Source: Kankanaey Back Translation)
• Tagbanwa: «On the contrary, this which has happened today is the fulfilling of the written word of the prophet Joel, saying,» (Source: Tagbanwa Back Translation)
• Teutila Cuicatec: «What you are seeing is what the prophet Joel wrote about in former times.»
• Morelos Nahuatl: «This is happening as the prophet Joel who talked about God’s Word said in time past.»
• Tepeuxila Cuicatec: «This is what spoke the prophet Joel who spoke of that which is to come.» (Source for this and two above: Viola Waterhouse in Notes on Translation August 1966, p. 86ff.)