どうしたの? (dō shita no?) - What's wrong?
Grammar & Usage
How it works
This phrase is formed from the past tense of the verb する (suru - to do), which becomes した (shita), preceded by the interrogative どう (dō - how/what way). The particle の (no) functions as an informal interrogative particle, similar to か (ka) but softer and more suitable for casual speech. It's used to ask for an explanation or the reason for a state or situation.
Sample sentences
顔色が悪いけど、どうしたの?
Your complexion looks bad, what's wrong?
急に黙り込んで、どうしたの?
You suddenly went quiet, what happened?
今日は遅かったね、どうしたの?
You were late today, what happened?
Quick facts
Mnemonic
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Example
顔色が悪いけど、どうしたの?
Your complexion looks bad, what's wrong?
急に黙り込んで、どうしたの?
You suddenly went quiet, what happened?
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