Another use of 是 in modern Chinese is in combination with the modifier 的 "de" to mean "yes" or to show agreement. For example: Question: 你的汽车是不是红色的？ "nǐ de qìchē shì bú shì hóngsè de?" "Is your car red or not?"Response: 是的 "shì de" "Is," meaning "Yes," or 不是 "bú shì" "Not is," meaning "No." (A more common way of showing that the person asking the question is correct is by simply saying "right" or "correct," 对 "duì"; the corresponding negative answer is 不对 "bú duì", "not right.")