Observations:
From Examples I, the Mobtada المبتدأ (e.g: Aza-hamo الزَحامُ, Athaw-bo الثوبُ, Al-khademo الخَادِمُ) is ended with Dumma vole مرفوع بالضمة Marfoo-on Bel-Dumma and the Al-Khabar الخَبَر is ended with Tanweenon Bel-Dumme vole تنوينٌ بالضمِّ (e.g: Sha-deed-on شَدِيدٌ, Ka-ser-on قَصِيرٌ, Ka-we-on قَويٌ… etc)
From Example II, The Mobtada المبتدأ (e.g: Aza-hama الزَحامَ, Athaw-ba الثوبَ, Al-khadema الخَادِمَ) is ended with Fat-ha vole (Mansoab-on Bel-Fat-ha (منصوب بالفتحة the Al-Khabar الخَبَر is ended with Tanweenon Bell-dumme vole تنوينٌ بالضمة (e.g: Sha-deed-on شَدِيدٌ, Ka-ser-on قَصِيرٌ, Ka-we-on قَوىٌ… etc)
Analysis:
The Nominative sentence الجملة الاسمية (Al-jom-la Al-ess-me-a-to) which is formed from المبتدأ والخبر Al-mobtada Wal-khabar, where they always are ended with Dumma vole , but when the nominative sentence is preceded with Enna or any of its sisters إنَّ وأخواتها the situation is changed, as الخبر Al-khabar is ended with تنوين بالضمة Tanweenen bel-dumma (إنَّ الْزحَامَ شَدِيدٌ، أنَّ الثوبَ قصيرٌ، كََأنَّ الخَادِمَ قَوِىٌ)
Rule:
When إنَّ (Kana) or any of its sisters وأخواتها precedes a nominative sentence, the vole of Al-mob-ta-da المبتدأ is changed from الضمة (Dumma) into الفتحة (Fat-ha) while الخبر is kept with no change.
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