CLOSED WORD CLASSES
Different Sinitic languages use very different grammars, which heavily influence the use of closed word classes, such as adpositions, classifiers, particles, pronouns. Those are usually mutually unintelligible across Sinitic languages, even when written down.
The pronoun "he" is 他 in Mandarin, 佢 in Cantonese and Hakka, 伊 in Taiwanese.
Taiwanese has "inclusive we" 咱 and "exclusive we" 阮, but the latter is not understood in Mandarin or Cantonese. (7/13)