にきがつく (To notice (that))

To notice (that), To realize (that)

JLPT N4

Pattern

Noun / plain form + に気がつく

How it works

に気がつく (きがつく) means “notice / realise”. The thing noticed takes に; a whole clause takes ことに or のに: まちがいに気がついた.

Examples

まちがいに気がつきました。I noticed a mistake.
さいふをわすれたことに気がついた。I realised I'd forgotten my wallet.

Further reading

Bunpro N4 · Lesson 10

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