qālū
They said
V – 3rd person masculine plural perfect verb + PRON – subject pronoun waw
Root Link: ق و ل
innā
Indeed we
ACC – accusative particle inna + PRON – 1st person plural object pronoun ā
Root Link: ا ن ن
ur'sil'nā
[we] have been sent
V – 1st person plural (form IV) passive perfect verb + PRON – 1st person plural object pronoun nā
Root Link: ر س ل