了

了 (le) currently has the following grammatical points associated with it:

• Expressing "excessively" with "tai" (A1)
• Change of state with "le" (A2)
• Expressing "about to happen" with "le" (A2)
• Expressing "already" with "yijing" (A2)
• Expressing "already" with just "le" (A2)
• Expressing "not anymore" with "le" (A2)
• Expressing "now" with "le" (A2)
• Expressing "stop doing" with "bie… le" (A2)
• Expressing completion with "le" (A2)
• Expressing duration with "le" (A2)
• Expressing ongoing duration with double "le" (A2)
• Negative adjectives with "-si le" (A2)
• Questions with "le ma" (A2)
• Result complement "-wan" for finishing (A2)
• Using "guo" with "le" (A2)
• Adjectives with "-ji le" (B1)
• Expressing "about to" with "jiuyao" (B1)
• Expressing "again" in the past with "you" (B1)
• Expressing "all at once" with "yixiazi" (B1)
• Expressing "almost" using "chadian" (B1)
• Expressing "already" with "dou" (B1)
• Expressing "enough" with "gou" (B1)
• Expressing "finally" with "zhongyu" (B1)
• Expressing "more and more" with "yuelaiyue" (B1)
• Expressing duration of inaction (B1)
• Expressing earliness with "jiu" (B1)
• Result complements (B1)
• Advanced "le" after an object (B2)
• Advanced "le" with complements (B2)
• Expressing "can't do without" with "shaobuliao" (B2)
• Expressing "never again" with "zai ye bu" (B2)

Not what you're looking for? Check the wiki page for le or search for 了