とは
That..., (Surprised) that..., (Never expected) that..., (Shocked) that...
Structure
Noun + （だ(1)）+ （など）+ とは
［い］Adjective + （など）+ とは
［な］Adjective + （だ(1)）+ （など）+ とは
(1) だった
Explanation
とは is an expressive pattern often found at the end of a clause or sentence to convey a strong sense of surprise, disbelief, or astonishment. It indicates that the preceding statement is something the speaker finds remarkable or hard to believe. In English, this nuance is similar to phrases like 'I can't believe that (A)' or 'to think that (A)', which highlight an emotional reaction without explicitly defining it.
とは is formed by combining the quotative particle と with the topic-marking particle は. This construction effectively takes the entire preceding clause and presents it as the topic of the speaker's unspoken astonishment or shock, emphasizing it as the source of their reaction.
- まさかあの田中さんが犬を飼うとは！何があったんだろう。I'd never have guessed Tanaka would get a dog! I wonder what happened.
- テストがこんなに難しいとは思わなかったよ。I didn't think that the test was going to be this difficult.
- 山田くんがこんなに料理が上手だったとは…なんで隠してたの？I had no idea that you were such a great cook, Yamada… Why were you hiding it from us?
When とは is preceded by a word like など, it adds the nuance that 'the very idea of something like (A)' is what the speaker finds so surprising or unbelievable.
- 親友がそんなことをするなどとは想像もしていなかったが、これが現実だ。I never imagined my best friend would do something like that, but I guess this is reality.
- まさかお気に入りのレストランが閉店していたなどとは…I had no idea that my favorite restaurant had closed down…
Caution
While とは frequently appears at the end of an unfinished thought, leaving the speaker's exact emotion implied, it is also possible to explicitly state the reaction (such as 'I was surprised' or 'it's unbelievable') immediately after.
- 彼女があの難関の試験に合格したとは驚きだ。I'm astonished that she passed that incredibly difficult exam.
Examples
あのいつも静かな鈴木さんが、人気ゲーム配信者だったとはねぇ！
I (never would have guessed) that the always-quiet Suzuki-san was a popular game streamer!
「このレストラン、安くておいしいと聞いていたのに、こんなに高いとは驚きだ。」
'I'm shocked that this restaurant is so expensive, especially since I heard it was cheap and delicious!'
簡単そうに見えたパズルが、解くのに三時間もかかったとは！
I (can't believe) that a puzzle that looked so simple took three hours to solve!
料理が大嫌いだった友人がレストランを開店したとは驚いた。
I was surprised that my friend, who used to hate cooking, opened a restaurant.
まさか自分が宝くじで一等に当選するとは夢にも思わなかった！
I would never have even dreamed that I would win first prize in the lottery! (never expected)
「あんなに人気があったパン屋さんが、来月閉店するとは信じられない…。」
'It's unbelievable that that super popular bakery is closing next month...'
うちの猫がトイレの水を流せるとは思ってもみなかったよ。
I never would have imagined that my cat could flush the toilet!
昨日まで赤ちゃんだった弟が、もう僕より背が高いとは…！
My little brother, who felt like just a baby yesterday, is now taller than me... I can't believe it! (never expected)
彼が会社の社長の息子さんだったとは…。どうりで態度が大きいわけだ。
To think that he was the company president's son... No wonder he had such an attitude.
道で拾った石が、まさか本物のダイヤモンドとは…！
I never imagined that the stone I picked up off the street would turn out to be a real diamond!
あの厳しい部長の趣味が編み物だったとは、意外でした。
It was unexpected that our strict department manager's hobby was knitting.
いつもテストで赤点ばかりだった山田くんが、名門の大学に合格するとは驚いたよ！
I'm shocked that Yamada-kun, who always used to get failing grades on tests, got into a prestigious university!