حُبْلَى contains feminine alif maqṣūra, whereas the final alif of فَتًى (“young man”) is not feminine alif.
جَاءَ فَتًى — A young man came. The word takes tanwīn.
A final written ى does not alone establish diptote status. One must identify the morphological nature of the ending. This is an additional teaching example, not a direct book quotation.
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Causes of Diptote Status — Femininity and Its Conditions
حُبْلَى contains feminine alif maqṣūra, whereas the final alif of فَتًى (“young man”) is not feminine alif.
جَاءَ فَتًى — A young man came. The word takes tanwīn.
A final written ى does not alone establish diptote status. One must identify the morphological nature of the ending. This is an additional teaching example, not a direct book quotation.