Equivalence to Form VI means a Form III verb is used with a meaning comparable to a Form VI (tafāʿala) verb.
شَاتَمَ زَيْدٌ عَمْرًا
Translation: Zayd and ʿAmr insulted one another.
Compare تَشَاتَمَ زَيْدٌ وَعَمْرٌو
Translation: Zayd and ʿAmr exchanged insults.
The first sentence has a direct object, while the second coordinates the two participants as grammatical subjects. Similar meaning does not imply identical syntax.
LessonsSeven Semantic Properties of Form III (Mufāʿalah): Participation, Equivalence, Causing a State, and Independent UsesQuiz
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Property 4: Equivalent to Form VI
Equivalence to Form VI means a Form III verb is used with a meaning comparable to a Form VI (tafāʿala) verb.
شَاتَمَ زَيْدٌ عَمْرًا
Translation: Zayd and ʿAmr insulted one another.
Compare تَشَاتَمَ زَيْدٌ وَعَمْرٌو
Translation: Zayd and ʿAmr exchanged insults.
The first sentence has a direct object, while the second coordinates the two participants as grammatical subjects. Similar meaning does not imply identical syntax.