Following are a number of back-translations of Mark 9:2:

• Uma: «Six nights from there, Yesus took three of his disciples with him to a tall mountain. Those three disciples were Petrus, Yakobus and Yohanes. Only Yesus with those three disciples were there. While they were there, his appearance changed.» (Source: Uma Back Translation)
• Yakan: «So-then, six days after that, Isa took Petros, Yakub and Yahiya onto a high mountain they by themselves (lit. they-they only). While they were there, the appearance of Isa really changed there in their sight.» (Source: Yakan Back Translation)
• Western Bukidnon Manobo: «Six days after that, Jesus took Peter, James, and John, and they went up a very high mountain alone. And while they were looking at Jesus, suddenly his appearance changed.» (Source: Western Bukidnon Manobo Back Translation)
• Kankanaey: «When six days had gone by, Jesus called Pedro and Santiago and Juan, and they climbed a high mountain by themselves. As they were looking at him, his appearance changed» (Source: Kankanaey Back Translation)
• Tagbanwa: «Six days passed, then Jesus took with him Pedro, Santiago and Juan, no others. They climbed a high mountain. When they were there now, they saw the appearance of Jesus become-very-unusual.» (Source: Tagbanwa Back Translation)