لَمْ يُفْتَحِ الْبَابُ
Lam makes the passive imperfect jussive. The connected kasra before al- is phonetic; the verb remains jussive.
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Passive with Negation and Jussive
The Passive Verb: Past, Imperfect, and Proxy Subject
لَمْ يُفْتَحِ الْبَابُ
Lam makes the passive imperfect jussive. The connected kasra before al- is phonetic; the verb remains jussive.