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了 (le) — Completed action — 了 le — completed action marker

了 (le) is placed after a verb to indicate that an action has been completed. English speakers often miss 了 entirely or place it in the wrong position.

particleHSK 1Difficulty 40
Where it goes
Verb + 了
What it does
  • 01completed action
  • 02change of state
  • 03new situation
Common learner errors
  • ⚠Omitting 了 for completed actions (e.g., "我吃" instead of "我吃了")
  • ⚠Using 了 for ongoing actions (e.g., "我住在了北京" should be "我住在北京")
Try it
我昨天已经吃了饭了。

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