لَنْ يَكْتُبُوا — لَمْ يَكْتُبُوا
The silent distinguishing alif is written after plural wāw. It is not a subject pronoun or the sign of mood; deletion of nūn is the mood marker.
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Silent Alif After Plural Wāw
Four Patterns of Imperfect Mood Marking
لَنْ يَكْتُبُوا — لَمْ يَكْتُبُوا
The silent distinguishing alif is written after plural wāw. It is not a subject pronoun or the sign of mood; deletion of nūn is the mood marker.