About the Meaning of 〜ことに〜


I recently studied the grammar point of 〜ことに〜, as in the following sentence:

> あきれた **ことに** 、彼の禁煙は1日だけだった。」

However, I'm not quite confident with its meaning. I'm having no trouble with
the meaning of the sentence itself but rather with using it myself.

Is the grammar point equivalent to the English 'to my surprise/horror etc.'?
And if not can anyone offer me a more suitable translation so that I can fully
grasps the meaning of said construct?




Yes, 驚いたことに is the most common translation of "to my surprise". You can often
use a sentence adverb ("Surprisingly, ..."), "what's (adj) ..." or "(adj)
thing is ..." too.

This ～ことに is used with _some_ adjectives that express emotion, such as 悲しい,
嬉しい, and 残念. I feel some adjectives do not normally take ～ことに even though they
describe emotions (we don't usually say [?]楽しいことに nor [?]爽快なことに for example).
Some combinations you can safely use include:

  * 嬉しいことに、幸いなことに
  * 悲しいことに、恐ろしいことに、怖いことに、辛いことに、悔しいことに、惜しいことに
  * 可哀想なことに、心配なことに、残念なことに
  * 困ったことに、驚いたことに
  * 悪いことに ("what's worse")

And note that this pattern is a bit stiff, and appears in speech uncommonly. I
think it's best to learn from examples, so please take a look at the following
page.

  * [Learn JLPT N3 Grammar: ことに (koto ni)](http://japanesetest4you.com/flashcard/learn-jlpt-n3-grammar-%E3%81%93%E3%81%A8%E3%81%AB-koto-ni/)
  * [JGram ～ことに 「は」 [～ことに 「は」] (kotoni)](http://www.jgram.org/pages/viewOne.php?tagE=kotoni)




Yes, 驚いたことに is the most common translation of "to my surprise". You can often
use a sentence adverb ("Surprisingly, ..."), "what's (adj) ..." or "(adj)
thing is ..." too.

This ～ことに is used with _some_ adjectives that express emotion, such as 悲しい,
嬉しい, and 残念. I feel some adjectives do not normally take ～ことに even though they
describe emotions (we don't usually say [?]楽しいことに nor [?]爽快なことに for example).
Some combinations you can safely use include:

  * 嬉しいことに、幸いなことに
  * 悲しいことに、恐ろしいことに、怖いことに、辛いことに、悔しいことに、惜しいことに
  * 可哀想なことに、心配なことに、残念なことに
  * 困ったことに、驚いたことに
  * 悪いことに ("what's worse")

And note that this pattern is a bit stiff, and appears in speech uncommonly. I
think it's best to learn from examples, so please take a look at the following
page.

  * [Learn JLPT N3 Grammar: ことに (koto ni)](http://japanesetest4you.com/flashcard/learn-jlpt-n3-grammar-%E3%81%93%E3%81%A8%E3%81%AB-koto-ni/)
  * [JGram ～ことに 「は」 [～ことに 「は」] (kotoni)](http://www.jgram.org/pages/viewOne.php?tagE=kotoni)

