The document discusses how the verb "you" (有) is negated in Mandarin Chinese. It notes that unlike most verbs which use "bu" (不) for negation, "you" uses "mei" (没有). So the negative form of "you" is "meiyou" (没有). It provides examples of sentences using both affirmative "you" and negative "meiyou". It demonstrates how "you" and "meiyou" are used before nouns or objects to indicate possession or existence.