The source illustrates this discussion with آمَنُوا, إِيمَانًا, اؤْتُمِنَ and ائْتِ. The first three display patterns associated with fatḥah/alif, kasrah/yāʾ and ḍammah/wāw.
Do not memorize only the surface spelling. Identify the earlier vowelled hamzah, the later sākin hamzah and how the former’s vowel governs the replacement.
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Three vowel-based patterns
Rules of Hamzah — Taḥqīq, Tashīl, Ibdāl and Hamzat al-Waṣl
The source illustrates this discussion with آمَنُوا, إِيمَانًا, اؤْتُمِنَ and ائْتِ. The first three display patterns associated with fatḥah/alif, kasrah/yāʾ and ḍammah/wāw.
Do not memorize only the surface spelling. Identify the earlier vowelled hamzah, the later sākin hamzah and how the former’s vowel governs the replacement.