رَامٍ and دَاعٍ do not have only two radical consonants. These are defective active participles whose final yāʾ is omitted in specified indefinite nominative and genitive environments.
VerbIndefinite nominative/genitiveRoot
رَمَىرَامٍر م ي
دَعَادَاعٍد ع و
وَقَىوَاقٍو ق ي
Do not extend this deletion without qualification to definite, construct, or accusative cases.
Example: جَاءَ دَاعٍ — A caller came.
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Advanced Sarf Application: Ambiguous Forms, Weak-Letter Reasoning and Error Correction
رَامٍ and دَاعٍ do not have only two radical consonants. These are defective active participles whose final yāʾ is omitted in specified indefinite nominative and genitive environments.
VerbIndefinite nominative/genitiveRoot
رَمَىرَامٍر م ي
دَعَادَاعٍد ع و
وَقَىوَاقٍو ق ي
Do not extend this deletion without qualification to definite, construct, or accusative cases.
Example: جَاءَ دَاعٍ — A caller came.