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I was wondering for this line:

> 緊張してるの？準備は丸一日しただろう。

Let's say A says this line to B. Does it sound alright id I say:

"You prepared the whole day, didn't you?." (so, why are you nervous?). If I
rearrange the sentence as 丸一日準備をしただろう is it the same meaning?

Is 丸一日した an adverb here? Kinda feel that maybe the に particle was left out, is
it the case? (the character A who speaks has a colloquial way of talking, with
many informal, shortened phrases, so I'm thinking that leaving out some words
is appropriate for him).
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2019-12-19T19:58:06.557
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2019-12-20T00:55:53.617
2019-12-19T23:59:06.433
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question
grammar translation
準備は丸一日した is there a particle missing?
丸一日した is not an adverb (it clearly includes した which is a verb), but 丸一日 is
adverbial. Nothing is omitted after 丸一日 because it works as an adverb on its
own. Remember that `number + counter` works as an adverb that describes an
amount in Japanese:

  * リンゴを2個買います。
  * 鉛筆を1本ください。

The same goes for a time length:

  * 日本に3日滞在しました。
  * 15年間東京に住んでいます。
  * 10分待ってください。

丸一日 is in the same vein. 丸一日準備(は/を/φ)しただろう means the same thing. に is used to
describe _when_ something happens (e.g., 1998年に = _in_ 1998; 日曜日に = _on_
Sunday), but it never marks a time length.
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2019-12-20T00:46:21.227
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2019-12-20T00:55:53.617
2019-12-20T00:55:53.617
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answer