Question

لَنَفْعَلَنَّ Active مَبْنِي  stateless – لَ (laam of emphasis) causes word to become stateless

Accepted Answer

Verily we will do! لَ at start and نّ   at end makes it emphatic and turns it into future tense.

Front	لَنَفْعَلَنَّ
Back	Verily we will do!
Back2	Active
Back3	لَ at start and نّ at end makes it emphatic and turns it into future tense.
Back4	مَبْنِي stateless – لَ (laam of emphasis) causes word to become stateless

لَ Stateless لَنَفْعَلَنَّ Verily Active Start نّ End