Lan: active | passive
FormActivePassive
Second-person fem. singularلَنْ تَفْعَلِيلَنْ تُفْعَلِي
Second-person fem. dualلَنْ تَفْعَلَالَنْ تُفْعَلَا
Second-person fem. pluralلَنْ تَفْعَلْنَلَنْ تُفْعَلْنَ
The feminine singular تَفْعَلِينَ loses its inflectional nūn, becoming تَفْعَلِي. The feminine dual likewise loses it; the feminine plural retains nūn al-niswah.
لَنْ تَفْعَلِي — you, one woman, will not do.
لَنْ تَفْعَلْنَ — you women will not do.
The different endings ي and نَ identify different persons.