など

など is a versatile particle with several main functions. While it can be written with the Kanji 等, in official or highly formal documents this Kanji is usually read as とう. When the reading など is intended, Japanese style guides generally recommend writing it in hiragana.

1. Listing Examples (Exemplification)
It indicates that the items mentioned are just a few examples of a larger set. It is frequently paired with the particle や in the pattern [A]や[B]など, or simply used with commas to list items (e.g., りんご、バナナ、みかんなど).
Example: りんごやバナナなどを買いました（りんごやばなななどをかいました - I bought apples, bananas, and so on).

2. Softening and Vagueness
In conversation, it can make a statement less direct by implying 'or something like that.' This avoids sounding too specific or demanding.
Example: お茶などいかがですか（おちゃなどいかがですか - How about some tea or something?).

3. Humility and Dismissive Emphasis
When used with oneself, it shows modesty (e.g., 私など... 'Someone like me...'). In negative sentences, it can express dismissive emphasis, implying that the thing is trivial or not worth serious attention.
Example: そんな嘘など信じません（そんなうそなどしんじません - I don't believe such [trivial] lies).

4. Casual Counterparts
In casual speech, など is often replaced by なんか or なんて. These carry a similar 'such as' or dismissive nuance but are strictly for informal situations.

5. Shock or Disbelief
When placed after a whole clause, など can express shock, disbelief, or outrage.
Example: 彼が負けるなど、あり得ない（かれがまけるなど、ありえない - It's impossible that he would lose!).

Grammar Rules:

• Nouns: Attaches directly (本など).
• Verbs: Attaches to the dictionary form (食べるなど). This is common in formal reports or news. For dismissive or emphatic nuances, it can also attach to the て-form (e.g., 泣いてなどいない（ないてなどいない） - I am definitely not crying) or the masu-stem (e.g., 泣きなどしない（なきなどしない） - I definitely won't cry).
• Adjectives: For negative, dismissive sentences, い-adjectives attach to the ku-form (e.g., 痛くなどない（いたくなどない） - It doesn't hurt at all), and な-adjectives can attach directly to the stem (e.g., 好きなどではない（すきなどではない） - I definitely don't like it). Note that when attaching to the に form (e.g., 好きになどならない（すきになどならない）), the に connects to the verb なる (to become), meaning 'I definitely won't come to like it' or 'I'll never fall for it.'
• Noun Modification: Use などの before another noun to mean "Nouns such as X" (e.g., りんごなどの果物（りんごなどのくだもの） - fruits such as apples).
• Quoting: Use などと before verbs of speaking or thinking to vaguely report what was said or thought (e.g., 行かないなどと言う（いかないなどという） - saying things like they won't go).
• Particles: など must follow directional or contextual particles like に, で, から, and と (it cannot replace them). For example, 東京になど（とうきょうになど）. However, placing など after these particles usually adds a dismissive, negative, or derogatory nuance. For neutral listing, など is placed directly after the noun (e.g., 東京など).
• Case Particles: など can either replace or combine with the case particles が and を (e.g., 嘘など信じない（うそなどしんじない） OR 嘘などを信じない（うそなどをしんじない）). The particles は, も, and に also frequently follow など (e.g., などは, なども, などに).