ضَرَبَ زَيْدٌ عَمْرًا
Translation: Zayd struck ʿAmr.
زَيْدٌ: nominative subject with visible ḍamma.
عَمْرًا: accusative object with visible fatḥa.
The variation “ضَرَبَ عَمْرًا زَيْدٌ” is also grammatical: ʿAmran remains the object despite appearing first, because its case is explicitly accusative. Zaydun remains the subject despite appearing after the object.