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What is the scope of the Sarf-e-Sagheer taught here?

Attached Trilateral (Mujarrad) - Bab 7: Fa'laah & Weak Root Rules

• Active past/Mudhaari', Masdar, Ism Fa'il, imperative and prohibitive
• A full passive paradigm
• Only past and Mudhaari'
• Only the weak-letter rule