Word by Word Analysis

ٱلَّذِينَ تَتَوَفَّىٰهُمُ ٱلْمَلَـٰٓئِكَةُ ظَالِمِىٓ أَنفُسِهِمْ ۖ فَأَلْقَوُا۟ ٱلسَّلَمَ مَا كُنَّا نَعْمَلُ مِن سُوٓءٍۭ ۚ بَلَىٰٓ إِنَّ ٱللَّهَ عَلِيمٌۢ بِمَا كُنتُمْ تَعْمَلُونَ 28

The ones whom the angels take in death [while] wronging themselves, and [who] then offer submission, [saying], "We were not doing any evil." But, yes! Indeed, Allāh is Knowing of what you used to do.