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Mandarin has several ways to say “maybe”, and your choice can make uncertainty sound neutral, thoughtful or surprisingly possible.
In English, “maybe” works in almost any uncertain situation. Mandarin gives you several common choices with different shades of feeling. 可能 (kěnéng) is the safest general option, 也许 (yěxǔ) sounds a little more reflective, and 说不定 (shuōbudìng) makes a possibility feel livelier. Here is how to choose naturally.
可能: the all-purpose “maybe”
可能 is a natural default in everyday conversation.
可能 is common in both speech and writing. Use it when you simply want to say that something may happen or may be true.
他可能会来。
Tā kěnéng huì lái.
He might come.
明天可能下雨。
Míngtiān kěnéng xiàyǔ.
It might rain tomorrow.
It can also mean “possible” or “possibility”, depending on its place in the sentence. For beginners, it is the most reliable default when you are unsure which expression fits.
也许 and 说不定: two different moods
也许 often suits a more considered thought.
也许 is close to “perhaps”. It often feels slightly more thoughtful and appears frequently in careful speech or writing:
也许他有自己的想法。
Yěxǔ tā yǒu zìjǐ de xiǎngfǎ.
Perhaps he has his own ideas.
说不定 literally suggests that something “cannot be said for certain”. In conversation, it often means “who knows?” or “it might just happen”, especially when the outcome feels interesting or unexpected:
说不定这是个好机会。
Shuōbudìng zhè shì ge hǎo jīhuì.
This might just turn out to be a good opportunity.
说不定 adds energy to an uncertain possibility.
大概 (dàgài) can mean “probably”, but it also gives rough estimates: 大概五公里 means “roughly five kilometres”.
Useful Chinese Words and Phrases
- 可能maybe; possibly
- 也许perhaps
- 说不定who knows; it might well happen
- 大概probably; roughly
- 不一定not necessarily
A Short Everyday Scenario
A: 你觉得他明天会来吗？
Nǐ juéde tā míngtiān huì lái ma?
Do you think he will come tomorrow?
B: 可能会吧，但也不一定。
Kěnéng huì ba, dàn yě bù yídìng.
Maybe, but not necessarily.
A: 说不定他会改变主意呢。
Shuōbudìng tā huì gǎibiàn zhǔyì ne.
Who knows, he might change his mind.
B: 也许吧，我们等等看。
Yěxǔ ba, wǒmen děngdeng kàn.
Perhaps. Let’s wait and see.
What should a learner do?
Start with 可能 in everyday conversation. Once that feels automatic, listen for 也许 when someone is weighing an idea and 说不定 when they introduce an unexpected possibility. Do not worry if you swap them: the sentence will usually remain understandable.
A common misunderstanding is that the three expressions are perfect synonyms. Their basic meanings overlap, but their tone differs. Think neutral (可能), reflective (也许) and speculative (说不定) rather than trying to assign each one a fixed English translation.
Final Takeaway
Use 可能 as your everyday “maybe”, then add 也许 for a thoughtful “perhaps” and 说不定 when a possibility feels open or surprising. Listening for these moods will make the differences feel natural over time.