رَأَيْتُ قَاضِيًا
Translation: I saw a judge.
رَأَيْتُ: past verb with subject tāʾ.
قَاضِيًا: accusative direct object with a visible fatḥa on the retained yāʾ and tanwīn for indefiniteness.
Contrast: In the accusative the yāʾ remains; indefinite nominative and genitive commonly use قَاضٍ.