What language does john speak in the brave new world?

There is no character named "John" in Aldous Huxley's novel *Brave New World*. The character you're likely thinking of is John the Savage.

John the Savage speaks English, but with a distinctly Shakespearean vocabulary and syntax. This is because he was raised on the reservation, a community outside the World State that still holds onto the traditions and literature of the pre-modern world. He has read Shakespeare's plays, and they deeply influence his way of speaking and thinking.

The contrast between John's eloquent, poetic language and the simplified, slangy speech of the World State citizens is one of the key themes of the novel. It highlights the differences between their cultures and values.