JNews

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9課 モダリティ・推量
Speculation & certainty — はず, よう, らしい, そう, かもしれない
9課

〜でしょう / 〜だろう

接続:ふつう形(な形・N は だ を取る) + でしょう/だろう
Probably…, probably… — conjectured with medium certainty, voice lowered.
注意 / Note:な形容詞 and noun omit だ: 元気でしょう(×元気だでしょう). If the voice is raised, it becomes a confirmation: 明日でしょう?=tomorrow, right?
比較 / Compare:かもしれない(30-50%)< でしょう(60-80%)< はずだ(grounded)< に違いない.
よく出る形 / Common form:たぶん+ふつう形+でしょう。
明日はたぶん晴れるでしょう。
Tomorrow it will probably be sunny.
この問題は学生には難しいでしょう。
This question is probably difficult for students.
彼はもう帰っただろう。
He's probably back.

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