sayaqūlūna
They will say
FUT – prefixed future particle sa + V – 3rd person masculine plural imperfect verb + PRON – subject pronoun na
Root Link: ق و ل
fa-annā
Then how
REM – prefixed resumption particle fa + INTG – interrogative noun
Root Link: ا ن ن ى
tus'ḥarūna
are you deluded
V – 2nd person masculine plural passive imperfect verb + PRON – subject pronoun ūna
Root Link: س ح ر