How to say “I don't know” in Chinese

zhīdào
I don't know

🔊 Tap to hear it

Pinyin colour key: tone 1 (high flat), tone 2 (rising), tone 3 (dipping), tone 4 (falling), neutral.

Word by word

I
not
zhī
to know
dào
(part of 'know')

Tone tip

知 is a flat first tone, then 道 falls (fourth). 不 stays bù because the next syllable 知 is a first tone, not a fourth.

In a sentence

Wǒ bù zhīdào tā de míngzi.

I don't know his name.

Hear it and say it right

Reading pinyin only gets you halfway. ToneDeck plays native audio and scores your pronunciation so your tones land. HSK 1 is free, no install.

Start free

Frequently asked questions

How do you say "I don't know" in Chinese?+

"I don't know" in Mandarin Chinese is 我不知道, pronounced wǒ bù zhīdào. 知 is a flat first tone, then 道 falls (fourth). 不 stays bù because the next syllable 知 is a first tone, not a fourth.

What does 我不知道 mean literally?+

我不知道 breaks down as 我 (wǒ) = I, 不 (bù) = not, 知 (zhī) = to know, 道 (dào) = (part of 'know'). Together it means "I don't know".

How do I get the tones right in wǒ bù zhīdào?+

知 is a flat first tone, then 道 falls (fourth). 不 stays bù because the next syllable 知 is a first tone, not a fourth.

More phrases like this

Master the tones behind it

On iPhone, Android and the web

ToneDeck is on the App Store. The trainer works right now.

Download ToneDeck for iPhone or Android today. One account unlocks Pro on both the app and the web. Prefer the browser? The full tone trainer runs at tonedeck.app right now, no install, free to start.

Sign up free and start training

See all the phrases on the how to say things in Chinese index, or read how to learn Mandarin tones.