رَجُلٌ ← رَجُلَانِ
عَصًا ← عَصَوَانِ
حَمْرَاءُ ← حَمْرَاوَانِ
Sound noun takes ordinary dual markers. Maqṣūr requires attention to the final alif’s origin; mamdūd depends on the type of final hamzah. All three remain dual.
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Final Comparison of Three Stem Types
The Dual Noun: Inflection, Maqṣūr, Mamdūd and Iḍāfah
رَجُلٌ ← رَجُلَانِ
عَصًا ← عَصَوَانِ
حَمْرَاءُ ← حَمْرَاوَانِ
Sound noun takes ordinary dual markers. Maqṣūr requires attention to the final alif’s origin; mamdūd depends on the type of final hamzah. All three remain dual.