Printed page 101 identifies four features of the form labeled Ifʿīlāl in the textbook: intransitivity (with rare transitive use), intensification, responsive/resulting action, and equivalence with Istifʿāl.
The source expressly marks the final two features as rare. Consequently, a learner must not promote an attested exceptional example into an unrestricted productive rule.
LessonsFinal Characteristics of Derived Forms: Ifʿīlāl, Ifʿilāl, Faʿlala, Tafaʿlala, and Related PatternsQuiz
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Ifʿīlāl: The Four Source Categories
Final Characteristics of Derived Forms: Ifʿīlāl, Ifʿilāl, Faʿlala, Tafaʿlala, and Related Patterns
Printed page 101 identifies four features of the form labeled Ifʿīlāl in the textbook: intransitivity (with rare transitive use), intensification, responsive/resulting action, and equivalence with Istifʿāl.
The source expressly marks the final two features as rare. Consequently, a learner must not promote an attested exceptional example into an unrestricted productive rule.