The full fourteen-form active paradigm and fourteen-form passive paradigm follow the same rule under lan.
Word / formMeaning / explanation
5 positionsfinal ḍamma becomes fatḥa: يَفْعَلُ ← لَنْ يَفْعَلَ.
7 positionsinflectional nūn is dropped: تَفْعَلِينَ ← لَنْ تَفْعَلِي.
2 positionsfeminine-plural nūn stays: يَفْعَلْنَ ← لَنْ يَفْعَلْنَ.
Thus 5 + 7 + 2 = 14 paradigm positions are covered. These are counts of grammatical positions, not necessarily distinct written forms.
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Negating the Imperfect with Lan and Lam: Subjunctive, Jussive and Full Paradigms
The full fourteen-form active paradigm and fourteen-form passive paradigm follow the same rule under lan.
Word / formMeaning / explanation
5 positionsfinal ḍamma becomes fatḥa: يَفْعَلُ ← لَنْ يَفْعَلَ.
7 positionsinflectional nūn is dropped: تَفْعَلِينَ ← لَنْ تَفْعَلِي.
2 positionsfeminine-plural nūn stays: يَفْعَلْنَ ← لَنْ يَفْعَلْنَ.
Thus 5 + 7 + 2 = 14 paradigm positions are covered. These are counts of grammatical positions, not necessarily distinct written forms.