“أَلْقِيَ” (ʾaalqiya)means “Throw” in this verse. It is a verb. an action or state word. Here it is verb pattern four, second person — masculine — dual.Corpus grammarV — second person masculine dual imperative verb.
“ا” (ā)a pronoun, a short word that stands in for a person or thing.Corpus grammarPRON — second person masculine dual subject pronoun.