innā
Indeed We
ACC – accusative particle inna + PRON – 1st person plural object pronoun ā
Root Link: ا ن ن
kunnā
[We] are
V – 1st person plural perfect verb + PRON – 1st person plural object pronoun nā
Root Link: ك و ن
mur'silīna
(ever) sending
N – accusative masculine plural (form IV) active participle
Root Link: ر س ل