For the sound masculine plural, the final alif maqsurah is deleted while the fathah before it is kept: مُصْطَفَى → مُصْطَفَوْنَ. The preceding vowel is not changed to dammah.
For the sound feminine plural, apply the same restoration/change used for the dual and then add اتٌ:
- عَصًا → عَصَوَاتٌ: original waw returns.
- حُبْلَى → حُبْلَيَاتٌ: final maqsurah changes to ya.
The masculine and feminine sound plurals therefore do not use one identical operation.
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Dual and Plural of Mamdud and Maqsur Nouns
For the sound masculine plural, the final alif maqsurah is deleted while the fathah before it is kept: مُصْطَفَى → مُصْطَفَوْنَ. The preceding vowel is not changed to dammah.
For the sound feminine plural, apply the same restoration/change used for the dual and then add اتٌ:
- عَصًا → عَصَوَاتٌ: original waw returns.
- حُبْلَى → حُبْلَيَاتٌ: final maqsurah changes to ya.
The masculine and feminine sound plurals therefore do not use one identical operation.