If you haven`t reach HSK 6 yet or still not fully understand Chines culture, there are many chances to say “I don`t understand” in Chinese when communicating with Chinese people. It`s very practical and will help you avoiding many misunderstanding situations.
when don`t understand this language or the thing
- 我不懂
(Wǒ bù dǒng)
- 我听不懂
(wǒ tīng bù dǒng.)
- 我不明白
(wǒ bù míngbái.)
When you don`t hear it clearly
- 不好意思，我没听清楚。
(bù hǎoyìsi, wǒ méi tīng qīngchǔ.)
When you don`t understand the meaning
- 对不起，我不懂你的意思。
(Duìbùqǐ, wǒ bù dǒng nǐ de yìsi.)
- 对不起，我不明白你的意思。
(Duìbùqǐ, wǒ bù míngbái nǐ de yìsi.)
When you ask to repeat
- 请再说一次。
(Qǐng zàishuō yīcì.)
- 什么？
(Shénme?)
- 麻烦你再说一遍好吗？
(Máfan nǐ zài shuō yībiàn hǎo ma?)
“I understand”
- 我懂了
(Wǒ dǒngle)
- 我明白了
(wǒ míngbái le)
- 我理解
(wǒ lǐjiě)
i hope the answer may question