you could give him a ticket to a ball game.这里的ticket to a ba

我想不是.ticket to a ball game是定语,不是名词所有格.名词所有格是指代’s 或带’的,而定语可以是一些介词短语作后置定语 如The man at home is my father.（在家的男人是我爸爸）,定语还可以是句子,如He is the teacher who teaches my Chinese.（他是教我语文的老师）.