～だけ (extent)

• 読み: だけ
• ローマ字: dake
• 形: Verb (dictionary form) + だけ + same Verb / Verb (potential form) + だけ / Verb たい-form + だけ

意味

A particle meaning 'to the extent that someone can or wants to do something.' It expresses the idea of doing something as much as possible or to the fullest degree allowed.

When だけ follows a verb in its potential or dictionary form, it conveys the meaning of 'as much as one can' or 'to the extent that.' This is distinct from the basic だけ meaning 'only.' The pattern often appears in constructions like できるだけ (as much as possible) or 食べたいだけ (as much as one wants to eat). It emphasizes maximizing the degree or quantity of an action. Learners sometimes confuse this usage with the restrictive だけ meaning 'only,' but context usually clarifies whether limitation or maximization is intended. It pairs naturally with verbs of volition and ability.

例文

1. 若いうちに経験できるだけ多くのことを経験すべきだ。
2. 交渉の余地がある限り、話し合えるだけ話し合おう。
3. 学生時代に読みたいだけ本を読んでおけばよかった。

使い方ガイド

場面: spoken, written, everyday

トーン: emphatic

正しい言い方

• 準備期間中はできるだけ多くの資料を集めておきたい。
• 残された時間で走れるだけ走るしかない。
• 子どもには好きなだけ絵を描かせてやりたい。

避ける言い方

• 食べるだけ食べて片付けない。(Using だけ to mean 'only eat' when the intended meaning is 'eat as much as one wants' — context may be ambiguous without a repeated verb or たい form) → 食べたいだけ食べて片付けない。
• 読めるだけの本を読んだ。(Ambiguous between 'read only the books one could' and 'read as many books as possible' — adding 多く or rephrasing clarifies the extent meaning) → 読めるだけ多くの本を読んだ。

起源と歴史

だけ originally derives from the noun 丈 (たけ), meaning 'height' or 'extent.' Over time it grammaticalized into a particle expressing degree and limitation, with this particular usage emphasizing the upper bound of an action.

文化的背景

世代: All ages

社会的背景: Universal