Do the Chinese languages have capital letters?

No, the Chinese languages do not have capital letters. Chinese characters are all the same size and shape, regardless of their position in a word or sentence. This is because Chinese is a logographic language, which means that each character represents a word or morpheme (the smallest unit of meaning in a language). In contrast, alphabetic languages like English use letters that can be combined to form words, and the first letter of a word is usually capitalized.