زَيْدٌ أَبُوهُ قَائِمٌ: overt link in the second mubtadaʾ.
زَيْدٌ قَامَ أَبُوهُ: overt link in the verbal subject.
زَيْدٌ قَامَ: hidden subject «هُوَ» links back to Zayd.
The original mubtadaʾ is the same in all three examples; the predicate structure and link location differ.
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Types of Khabar and the Linking Pronoun
زَيْدٌ أَبُوهُ قَائِمٌ: overt link in the second mubtadaʾ.
زَيْدٌ قَامَ أَبُوهُ: overt link in the verbal subject.
زَيْدٌ قَامَ: hidden subject «هُوَ» links back to Zayd.
The original mubtadaʾ is the same in all three examples; the predicate structure and link location differ.