qālū
They said
V – 3rd person masculine plural perfect verb + PRON – subject pronoun waw
Root Link: ق و ل
takūna
you become
V – 2nd person masculine singular imperfect verb, subjunctive mood
Root Link: ك و ن
l-hālikīna
those who perish
DET – determiner prefix al + N – genitive masculine plural active participle
Root Link: ه ل ك