HSK 1
完成态：用动态助词“了”表示
wán chéng tài ： yòng dòng tài zhù cí “ liǎo ” biǎo shì
Completed aspect: using the aspect particle "了" to express it
Explanation
The completed aspect (完成态 wánchéng tài) expresses an action that is finished, formed with the aspect particle 了 (le) placed right after the verb, roughly like the past tense in English.
Subject (the doer, at the start of the sentence) + verb + 了 + quantity + object (the target of the action, e.g. "book" in "buy a book") → 他买了两个面包 (he bought two pieces of bread). Sentences with a specific quantity (两个, 很多) fit 了 very well.
when emphasizing that an action is complete and a result has been obtained.
when making a negative you must use 没 (méi) before the verb and DROP 了 (correct: 他没买面包; wrong: 他没买了面包). Do not use 不 to negate a completed action. If the object has no attributive (an element modifying a noun), sometimes 了 must be added at the end of the sentence for the meaning to be complete (他买书了), but at HSK 1 you only need to master the pattern "verb + 了 + quantity + object".
Examples
He bought two pieces of bread. / He did not buy bread.
I drank a lot of water. / I did not drink water.
Practice
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Learn “完成态：用动态助词“了”表示” effectively
The grammar point “完成态：用动态助词“了”表示” (Completed aspect: using the aspect particle "了" to express it) is one of the key structures at HSK 1. To use it fluently, you need to understand the contexts where it's used and practice regularly.
Study tip: read the examples aloud many times to build a natural reflex. Then try making your own sentences for your own situations. Use the audio button to hear and practice accurate pronunciation.
You can also view the full “” lesson to understand the related grammar and vocabulary more deeply.