V不V and Adj不Adj form choice questions by presenting both the positive and negative. This is called an affirmative-negative question.
Yes/no questions - Alternative to using 吗
Offering a choice - Do you want to or not?
Sounds more direct - Often more casual than 吗
Are you going or not?
For two-syllable verbs, you can shorten: 喜欢不喜欢 → 喜不喜欢.
Shortening two-syllable words
- 喜欢不喜欢 → 喜不喜欢
- 知道不知道 → 知不知道
Cannot use with 没
- ✅ 去不去
- ❌ 去没去 (use 去没有 instead for past)
Cannot combine with 吗
- ✅ 你去不去？
- ❌ 你去不去吗？
Are you going or not?
Do you like eating spicy food?
Is this good or not?
Do you know who he is?
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