かな
I wonder
Structure
Explanation
Believed to have formed from a blend of the sentence ending particles か and な, かな now functions as its own distinct particle. It is used to express a sense of personal wonder, roughly meaning 'I wonder if...?'.
Because it is a sentence ending particle, かな can be attached to the end of most sentences. Note that when following a な-adjective, both だ and です are typically dropped, with かな attaching directly to the adjective's stem.
- 明日は雨が降るかな。I wonder if it will rain tomorrow.
- ドアの鍵、ちゃんと閉めたかな。I wonder if I locked the door properly.
The meaning of かな is derived from its two components, か and な. The particle か is used for asking questions, while な adds a nuance of personal reflection. Therefore, かな is used when a speaker is posing a question to themselves.
Fun Fact
In the past, かな was considered to have a feminine nuance, while men often used expressions such as だろうか for the same purpose. In modern Japanese, however, this gender-based distinction is no longer common, and かな is used freely by everyone.
- この計画で本当にうまくいくのだろうか。I wonder if this plan will really work out. (Slightly masculine)
- 彼はもう駅に着いたかな。I wonder if he's arrived at the station yet. (Commonly used by anybody)
Examples
そろそろ家に帰ろうかな。
I wonder if I should head home soon...
新しいパソコンを買った方がいいかな。
I wonder if I should buy a new computer...
一人で全部食べられるかな。
I wonder if I can eat all of this by myself...
財布にお金、まだ残っているかな。
I wonder if I still have any money left in my wallet.
次のテストはいつかな。
I wonder when the next test is.
田中さんはもう会社に居るかな。
I wonder if Tanaka-san is at the office already.
赤ちゃんは今、寝ているのかな。
I wonder if the baby is sleeping right now.
もう遅いから、電話しなくていいかな。
It's already late, so I wonder if it's okay not to call.
電気がついていないから、もうみんな寝たのかな。
The lights are off, so I wonder if everyone has gone to bed already.
彼は海外で働いたことがあるのかな。
I wonder if he has ever worked abroad.
この服、私には少し大きいかな。
I wonder if these clothes are a little too big for me.
このパーティー、楽しいのかな。みんな静かだね。
I wonder if this party is actually fun. Everyone is so quiet.