﴿ وَلَوْ تَرَىٰٓ إِذْ وُقِفُوا۟ عَلَى ٱلنَّارِ فَقَالُوا۟ يَٰلَيْتَنَا نُرَدُّ وَلَا نُكَذِّبَ بِـَٔايَٰتِ رَبِّنَا وَنَكُونَ مِنَ ٱلْمُؤْمِنِينَ ﴾

“If thou couldst but see [them] when they will be made to stand before the fire and will say, "Oh, would that we were brought back [to life]: then we would not give the lie to our Sustainer's messages, but would be among the believers!"”

If you O Muhammad (s) could see when they are made to stand when they are exposed before the Fire and they say ‘Oh yā is for exclamation would that we might be returned to the world; then we would not deny the signs of our Lord but we would be among the believers!’ read nukadhdhibu and nakūnu as a new independent sentence; or read nukadhdhiba and nakūna as the subjunctive response to the optative clause; or read nukadhdhibu and nakūna. The response to the clause ‘if you could see’ would be ‘you would be seeing a terrible thing indeed’.