Question

لَنْ تُفْعَلْنَ Passive (1st letter excl. لن becomes ضَمَّة and 2nd last letter becomes فَتْحَة) I.e. compared to active version أَنْ / لَنْ / كَيْ / إِذَنْ  cause it to become نَصْب

Accepted Answer

You (P/F) will never be done لَنْ changes meaning of word from he does to he will never do - future tense and negation مَبْنِي  stateless - 3rd person feminine plural - final noon indicates subject i.e. a group of women

Front	لَنْ تُفْعَلْنَ
Back	You (P/F) will never be done
Back2	Passive (1st letter excl. لن becomes ضَمَّة and 2nd last letter becomes فَتْحَة) I.e. compared to active version
Back3	لَنْ changes meaning of word from he does to he will never do - future tense and negation
Back4	أَنْ / لَنْ / كَيْ / إِذَنْ cause it to become نَصْب
Back5	مَبْنِي stateless - 3rd person feminine plural - final noon indicates subject i.e. a group of women

لَنْ Letter I.E تُفْعَلْنَ P/F Passive 1st Excl