HSK 1Particles

Completed Action 了

了 after a verb indicates a completed action.

Pattern

Subject + Verb + 了 + Object

Explanation

了 (le) placed after a verb indicates the action has been completed. It's not exactly 'past tense' — it marks completion.

When negating a completed action, use 没 and drop 了: '我没吃早饭' (not '我没吃了早饭').

Examples

我吃了早饭。

Wǒ chī le zǎofàn.

I ate breakfast.

他买了一本书。

Tā mǎi le yì běn shū.

He bought a book.

我们看了电影。

Wǒmen kàn le diànyǐng.

We watched a movie.

Common Mistakes

Wrong

我没吃了早饭。

Correct

我没吃早饭。

Never use 了 with 没. Drop 了 when negating.

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