ضَرَبَ أَحْمَدُ وَأَحْمَدٌ آخَرُ
ضَرَبَ: past verb. First أَحْمَدُ: nominative subject, diptote. وَ: conjunction.
Second أَحْمَدٌ: nominative coordinated noun with tanwīn. آخَرُ: nominative diptote adjective. The second “Aḥmad” is an indefinite reference to another bearer of the same name.