Japanese

だろう

だろう
Meaning: probably; I think; right?
Part of Speech: Auxiliary verb

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Verb inflections

Form Affirmative Negative
Present だろう だろわない
Polite だろいます だろいません
Past だろった だろわなかった
Polite + Past だろいました だろいませんでした
Te-form だろって だろわなくて
Potential だろえる だろえない
Passive だろわれる だろわれない
Causative だろわせる だろわせない
Causative + Passive だろわされる だろわされない
Imperative だろえ だろうな

Handwriting

だ
ろ
う

Example sentences

I think it will probably be sunny tomorrow.
明日はきっと晴れるだろう
Tomorrow will surely be sunny.
彼はすぐには戻ってこないだろう。
He probably won't come back soon.
明日から明後日にかけて雨が降るだろう。
It will rain from tomorrow through the day after tomorrow.
明日は多分晴れるだろう。
It will probably be sunny tomorrow.
今日はおそらく雨が降るだろう。
It will probably rain today.
最悪の場合、試合は中止になるだろう。
In the worst-case scenario, the match will be cancelled.
道のその先には何があるのだろうか。
I wonder what lies beyond that path.
困ったなあ、どうしたらいいだろう。
Oh no, what should I do?
何故、彼はその理由を説明しなかったのだろうか。
Why didn't he explain the reason, I wonder?

Usage Notes

Auxiliary verb expressing conjecture or seeking confirmation. Plain form of 'でしょう'. Follows verbs, adjectives, and nouns (with だ omitted).

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