رَأَيْتُ زَيْدًا وَخَالِدًا
Translation: I saw Zayd and Khālid.
Raʾaytu: past-tense verb with attached subject tāʾ; Zaydan: accusative direct object; Khālidan: accusative noun coordinated with that object.
Khālid is not the subject: its case follows the accusative object.