The short version: Many Chinese verbs describe only the attempt. 听 tīng is listen, 找 zhǎo is look for. To say the attempt succeeded, add a result: 听到 hear, 听懂 understand, 找到 find, 看完 finish reading. A failed result is negated with 没: 我没听懂. To say you can't, put 不 in the middle: 我听不懂.
English has separate verbs for trying and succeeding: you look for your keys and then you find them, you listen and then you understand. Chinese builds the second verb out of the first. It keeps the action and adds a small syllable that reports the outcome. This is why a learner who knows 听 still cannot say “I didn't understand” correctly until they learn the ending.
One action, three outcomes
The last sentence is impossible to say with 听 alone. It needs both halves: the attempt (听了) and the missing result (没听懂). The same split appears with looking and searching:
The ten results you will use most
找到 find · 买到 manage to buy · 收到 receive
看见 see · 听见 hear
听懂 by listening · 看懂 by reading
吃完 finish eating · 写完 finish writing
做好 get done · 准备好 be ready
学会 learn how to do
写错 write wrongly · 打错 dial wrongly
记住 memorise · 拿住 hold tight
听清楚 hear clearly · 看清楚 see clearly
洗干净 wash clean · 擦干净 wipe clean
Saying it didn't happen: 没, not 不
A verb with a result reports an outcome, so the negative reports that the outcome did not happen. Chinese uses 没 for that.
Questions follow the same logic. Ask 你找到了吗？ or 找到了没有？, and answer 找到了 (found it) or 没找到 (didn't find it).
Can and can't: 听得懂 and 听不懂
Put 得 (de) or 不 (bu, neutral tone) between the verb and the result, and the sentence talks about ability instead of what happened.
没听懂: this time
对不起，我没听懂。duìbuqǐ, wǒ méi tīngdǒngSorry, I didn't catch that.
It happened once. Asking for a repeat makes sense.
听不懂: not able
我听不懂上海话。wǒ tīng bu dǒng ShànghǎihuàI can't understand Shanghainese.
A limit of ability. Repeating will not help.
✓ 我已经看完了那本书。 / 那本书我已经看完了。
✗
The verb and its result behave like one word.
Check yourself
Attempt, result, or ability?
The result didn't happen: 没 + 找到.
A result that did not happen takes 没.
Ability: verb + 不 + result = 写不完.
Mastering a skill: 学会.
The verb and its result stay together: 看完了那本书.
Dialled wrongly: 打错.
From 听不懂 to 听得懂
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Learn Chinese with Hanzijo - FreeQuick reference
- Verb alone
- The attempt: 听 listen, 看 look, 找 look for.
- Verb + result
- The success: 听到 hear, 听懂 understand, 找到 find, 看完 finish reading, 学会 learn.
- 到 vs 见
- Interchangeable after 看 and 听. 见 only with perception verbs; 到 also in 找到, 买到, 收到.
- Negative
- 没 + verb + result: 没听懂, 没找到. Never 不听懂.
- Can / can't
- Verb + 得/不 + result: 听得懂, 听不懂, 找不到, 吃不完.
- 没听懂 vs 听不懂
- Didn't understand this time / not able to understand.
- Word order
- 了 and the object follow the result: 我看完了那本书.
Frequently asked questions
What is the difference between 听, 听到 and 听懂?
听 (tīng) is the action of listening. 听到 or 听见 means the sound reached you: you heard it. 听懂 means you understood it. 我听了，可是没听懂: I listened, but I didn't understand.
Why is it 没听懂 and not 不听懂?
A verb with a result describes something that either happened or did not. 没 negates things that did not happen, so 没听懂 is correct. 不 belongs inside the potential form: 听不懂, cannot understand.
What is the difference between 没听懂 and 听不懂?
我没听懂 means I didn't understand that particular time, so you might ask the speaker to repeat. 我听不懂 means I am not able to understand, for example a language you have not learned: 我听不懂广东话.
What is the difference between 看见 and 看到?
With 看 and 听, 见 and 到 are almost interchangeable: 看见 and 看到 both mean see. 见 attaches only to perception verbs, while 到 is much broader: 找到 (find), 买到 (manage to buy), 收到 (receive).
Where does 了 go with a result complement?
After the complement: 我看完了, 我找到了. The object also follows the complement: 我看完了那本书, never 我看那本书完了.
- 刘月华 (Liu Yuehua) et al., 《实用现代汉语语法》 (Practical Modern Chinese Grammar): the chapters on result complements (结果补语) and potential complements (可能补语).
- 吕叔湘 (Lü Shuxiang), 《现代汉语八百词》: the entries for 到, 见, 懂, 完 and 住.
- Center for Language Education and Cooperation (CLEC), official HSK site (chinesetest.cn).