وَلَوْ جَآءَتْهُمْ كُلُّ ءَايَةٍ حَتَّىٰ يَرَوُا۟ ٱلْعَذَابَ ٱلْأَلِيمَ
Walaw j a athum kullu a yatin h att a yarawoo alAAa tha ba alaleem a even though every sign [of the truth] should come within their ken - until they behold the grievous suffering [that awaits them in the life to come].118
 - Mohammad Asad
even if every sign should come to them, until they themselves see the painful punishment.
 - Muhammad Farooq-i-Azam Malik
even if every sign were to come to them- until they see the painful punishment.
 - Mustafa Khattab
Though every token come unto them, till they see the painful doom.
 - Marmaduke Pickthall
Even if every Sign was brought unto them until they see (for themselves) the Penalty Grievous.
 - Abdullah Yusuf Ali