Meaning
What is noticed is marked with に: 間違いに気がつく (to notice a mistake). A synonym is 気づく.
Formation
- N + に + 気がつく: 間違いに気がつく; polite 気がつきました
- A whole situation: plain form + こと／の + に気がつく
- One-word synonym 気づく, with the same に
When to use it
- Core use
- To notice
Example
テストの間違いに気がつきました
I noticed a mistake in the test.
Important notes
- Pay attention to the word form before the construction and to the particles around it.
Common mistakes
- Do not translate the pattern word for word; first identify its function in the whole situation.