Classify the root before applying the contest rule:
ExampleRootType
ضَرَبَض ر بSound
قَالَق و لHollow-wāw
دَعَاد ع وFinal-wāw
وَعَدَو ع دInitially weak
بَاعَب ي عHollow-yāʾ
رَمَىر م يFinal-yāʾ
The spelling قَالَ and بَاعَ contains alif in both cases, but their underlying middle radicals differ. That difference determines the appropriate branch of the textbook's rule.
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Properties of the Six Basic Triliteral Forms: Contest, Transitivity, and Semantic Patterns
Classify the root before applying the contest rule:
ExampleRootType
ضَرَبَض ر بSound
قَالَق و لHollow-wāw
دَعَاد ع وFinal-wāw
وَعَدَو ع دInitially weak
بَاعَب ي عHollow-yāʾ
رَمَىر م يFinal-yāʾ
The spelling قَالَ and بَاعَ contains alif in both cases, but their underlying middle radicals differ. That difference determines the appropriate branch of the textbook's rule.