“أَ” (ʾaa)This word asks a question, like “is?” or “do?”Corpus grammarINTG — prefixed intg particle.
“تَأْتُ” (taʾatu)means “Do you approach” in this verse. It is a verb. an action or state word. Here it is imperfect verb, second person — masculine — plural.Corpus grammarV — second person masculine plural imperfect verb.
“ونَ” (wna)an attached pronoun meaning “you all.” It shows who is being addressed.Corpus grammarPRON — second person masculine plural subject pronoun.