“لَ” (la)This prefix adds emphasis to the word or statement that follows.Corpus grammarEMPH — prefixed emph particle.
“أُعَذِّبَ” (ʾauʿadhʿiba)means “I will surely punish him” in this verse. It is a verb. an action or state word. Here it is imperfect verb, verb pattern two.Corpus grammarV — first person singular imperfect verb.
“نَّ” (nna)This prefix adds emphasis to the word or statement that follows.Corpus grammarEMPH — emph particle.
“هُ” (hu,)an attached pronoun meaning “he” or “him.”Corpus grammarPRON — third person masculine singular attached pronoun.