- That watch of his own has been given to his son. (他自己的那隻手錶已送給他兒子) (正)
- His own that watch has been given to his son. (誤)
- His that watch has been given to his son. (誤)
解說：That + 名詞 + of + one’s own 為雙重所有格結構，表示某人自己的。另外，我們也經常看到這樣的句型：He has a car (a house, a room…) of his own. (他有他自己的車) = He has his own car (house, room…)，但 “a car of his own” 的語氣比較強。