lajaʿalnāhu
We (would) surely make it
EMPH – emphatic prefix lām + V – 1st person plural perfect verb + PRON – 1st person plural object pronoun nā + PRON – 3rd person masculine singular possessive pronoun ha
Root Link: ج ع ل
faẓaltum
then you would remain
REM – prefixed resumption particle fa + V – 2nd person masculine plural perfect verb + PRON – subject pronoun tum
Root Link: ظ ل ل
tafakkahūna
wondering
V – 2nd person masculine plural (form V) imperfect verb + PRON – subject pronoun ūna
Root Link: ف ك ه