Change of State le 了

  1. What is the change-of-state le 了?
  2. Change-of-state le 了used in sentences with different predicates
    1. le 了 at the end of a sentence with a noun predicate.
    2. le 了 at the end of a sentence with a stative verb predicate.
    3. le 了 at the end of a sentence with a verb predicate.
    4. le 了 at the end of a sentence with a verb predicate in which an optative or modal verb occur before the main verb.
    5. le 了 at the end of a shì 是 sentence.
    6. le 了 at the end of a yǒu 有 sentence.
  3. The change-of-state le 了in negative sentences
  4. Question forms
  5. Change vs. no change