he and his wife watch TV,为什么watch不加s

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he and his wife watch TV,为什么watch不加s

He and his wife 等同于 they, 是第三人称复数形式,因而一般现在时里要用动词原形.

and连接两个并列主语时,按照复数论。
此处是两个人,所以不用加s。
如果是there be句型,就要用就近原则了。

HE 和HIS WIFE是两个人啊 当然不加S

主语是he and his wife为复数概念,所以谓语动词watch不用变第三人称单数形式了。