أَنَاخَ الرَّاعِي الْبَعِيرَ — The herdsman made the camel kneel.
أَنَاخَ: past verb built on fatḥ.
الرَّاعِي: nominative subject with an estimated ḍammah.
الْبَعِيرَ: accusative object with fatḥah.
أَنَاخَ is an ordinary verb reporting an action in the past; «نخ» is a conventional call.