听不懂
tīng bù dǒng
Potential complement "-bu dong" for not understanding
懂 as a complement is about comprehension — and 不 in the middle makes it impossible.
Verb + 不懂 / 得懂
How it works
我听不懂 — I can't understand what I'm hearing. 看不懂 is the reading equivalent.
The positive is 听得懂: 我听得懂一点. Note that 不 and 得 slot into the same position.
This is different from 我没听懂, which says you didn't catch it that one time rather than that you can't in general.
Examples
wǒ tīng bù dǒng
我听不懂。
I can't understand (what I'm hearing).
zhè běn shū wǒ kàn bù dǒng
这本书我看不懂。
I can't read this book.
wǒ tīng dé dǒng yì diǎn
我听得懂一点。
I can understand a little.