tabyaḍḍu
would become white
V – 3rd person feminine singular (form IX) imperfect verb
Root Link: ب ى ض
wataswaddu
and would become black
CONJ – prefixed conjunction wa (and) + V – 3rd person feminine singular (form IX) imperfect verb
Root Link: س و د
fa-ammā
As for
REM – prefixed resumption particle fa + EXL – explanation particle
Root Link: ا م م ا
wujūhuhum
[their] faces
N – nominative masculine plural noun + PRON – 3rd person masculine plural object pronoun Ha
Root Link: و ج ه
akafartum
Did you disbelieve
INTG – prefixed interrogative alif + V – 2nd person masculine plural perfect verb + PRON – subject pronoun tum
Root Link: ك ف ر
īmānikum
your belief
N – genitive masculine (form IV) verbal noun + PRON – 2nd person masculine plural possessive pronoun kum
Root Link: ا م ن
fadhūqū
Then taste
REM – prefixed resumption particle fa + V – 2nd person masculine plural imperative verb + PRON – subject pronoun waw
Root Link: ذ و ق
l-ʿadhāba
the punishment
DET – determiner prefix al + N – accusative masculine noun
Root Link: ع ذ ب
kuntum
you used to
V – 2nd person masculine plural perfect verb + PRON – subject pronoun tum
Root Link: ك و ن
takfurūna
disbelieve
V – 2nd person masculine plural imperfect verb + PRON – subject pronoun ūna
Root Link: ك ف ر