Following are a number of back-translations of John 4:48:

• Uma: «Yesus said to him: ‘If you(p) do not see miracles and powerful things, you(p) still do not believe!'» (Source: Uma Back Translation)
• Yakan: «Isa said to him, ‘If you (pl.) are not able to see signs and wonder-causing works, you (pl.) do not believe.'» (Source: Yakan Back Translation)
• Western Bukidnon Manobo: «And Jesus said to the person, ‘Evidently you won’t believe in me if you cannot see miracles and signs?'» (Source: Western Bukidnon Manobo Back Translation)
• Kankanaey: «Jesus said to him, ‘Oh you (pl.) are too much! If you don’t see any amazing sign, you won’t believe.'» (Source: Kankanaey Back Translation)
• Tagbanwa: «Jesus said to him, ‘Apparently unless you (pl.) see signs which are amazing things which I am doing, you really don’t believe/obey.'» (Source: Tagbanwa Back Translation)
• Tenango Otomi: «Jesus said, ‘If you do not see the signs which I do, then you don’t believe in me.'» (Source: Tenango Otomi Back Translation)