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
rabbinā
our Lord
N – genitive masculine noun + PRON – 1st person plural object pronoun nā
Root Link: ر ب ب
munqalibūna
(will) return
N – nominative masculine plural (form VII) active participle
Root Link: ق ل ب