Negation in Mandarin 不 (bù) versus 没 (méi)
I have noticed that 不 (bù) and 没 (méi) are both used for negation; also, they do not seem to be interchangeable usually.
Here is a decent looking list that I have found describing the uses of 不 (bù) and 没 (méi):
- 1. 不 (bù) Negates in the Present and Future
- 2. 不 (bù) Negates Habitual Actions
- 3. 不 (bù) Is Normally Used with Adjectives
- 4. 不 (bù) Is for Asking Questions
- 5. 没 (méi) Negates Past Actions
- 6. Only 没 (méi) Negates 有 (yǒu)
- 7. 没 (méi) Is for Making Comparisons
- 8. 不 (bù) Is Used Almost Exclusively with Certain Verbs
This website elaborates more on this list. https://resources.allsetlearning.com/chinese/grammar/Comparing_%22bu%22_and_%22mei%22
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