āl'āna
Now
INTG – prefixed interrogative alif + DET – determiner prefix al + T – accusative time adverb
Root Link: ا ى ن
ʿaṣayta
you (had) disobeyed
V – 2nd person masculine singular perfect verb + PRON – subject pronoun ta
Root Link: ع ص ى
wakunta
and you were
CONJ – prefixed conjunction wa (and) + V – 2nd person masculine singular perfect verb + PRON – subject pronoun ta
Root Link: ك و ن
l-muf'sidīna
the corrupters
DET – determiner prefix al + N – genitive masculine plural (form IV) active participle
Root Link: ف س د