Question

لَمْ تَفْعَلْنَ Active اِنْ / لَمْ / لِ  / لاَ  cause it to become  جَزْم

Accepted Answer

You (P/F) did not do لَمْ  changes meaning of word from he does to he did not do - paste tense and negation مَبْنِي  stateless - 3rd person feminine plural - final noon indicates subject i.e. a group of women

Front	لَمْ تَفْعَلْنَ
Back	You (P/F) did not do
Back2	Active
Back3	لَمْ changes meaning of word from he does to he did not do - paste tense and negation
Back4	اِنْ / لَمْ / لِ / لاَ cause it to become جَزْم
Back5	مَبْنِي stateless - 3rd person feminine plural - final noon indicates subject i.e. a group of women

لَمْ تَفْعَلْنَ P/F Active Meaning Word Paste Tense