While a simple grammar word, the usage of 每 (měi) reveals a core aspect of the Chinese linguistic worldview: classification. In English, you can simply say “every person” or “every book.” In Chinese, you are required to classify the noun you're talking about. The structure `每 + Measure Word + Noun` forces the speaker to be specific.
This isn't just a grammar rule; it reflects a mindset that emphasizes categorizing objects and people based on their nature. For a Western learner, mastering this concept is a key step toward thinking more naturally in Chinese and moving away from direct English-to-Chinese translation. It’s less about a deep philosophical value and more about a fundamental, built-in “cultural grammar” of specificity.
The use of 每 (měi) is ubiquitous and follows a few very consistent patterns.
This is the most common structure. You must include a measure word.
This is where you'll use 每 most often in daily conversation. Note that `天 (tiān)` is a special case that acts as its own measure word.
To add emphasis and mean “every single one… all…”, Chinese uses the `每…都 (dōu)…` pattern. `都` means “all” or “both” and reinforces that the statement applies to the entire group without exception.
To talk about how often something happens within a time frame.