【～だろう】may, might, could, would, should どう使い分ける？ ５つの助動詞で言うとこうなる・こう違う！

仮定法：should've could've would've（過去の仮の話）｜わかりやすい英文法

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過去のモーダル: | を持つことができます。 |を持つ可能性がありますあるかもしれない | | が必要です| が必要ですあるだろう - 文法

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