だけしか～ない
To emphasize '~only', Nothing but
Structure
Explanation
The grammar pattern だけしか is formed by joining the adverbial particles だけ ('only', 'just') and しか ('nothing but'). This combination is typically placed after a noun, and the clause that follows will always conclude with a negative expression.
- 兄は英語だけしか分かりません。My older brother can only understand English.
- 今週は金曜日だけしか時間がないから、出来れば金曜日にお願いします。I have no free time this week except for Friday, so if possible, I'd prefer Friday.
- この問題の中で、これだけしか難しくない。他は全部難しい。Among these problems, this is the only one that isn't difficult. All the others are hard.
- どうしてこのシャツだけしか割引ではないの？Why is this shirt the only one that isn't discounted?
Although だけしか can be used in various negative sentence structures, it is most frequently encountered in sentences that end with a negative verb.
- 僕は自転車だけしか乗れないです。I can only ride a bicycle.
Fun Fact
だけしか might seem redundant, as if it means 'only' twice, but each particle actually contributes its own unique nuance to the expression. The distinction is as follows:
だけ - Isolates one item from a larger set, presenting it as the sole item that meets a certain condition.
しか - Emphasizes that something stands alone, indicating a complete absence of other options.
Because of this, the meanings combine: だけ first selects 'just this one', and しか then strongly reinforces 'and absolutely nothing else!'. Reversing the order to しかだけ is grammatically incorrect because it violates this logical sequence of selection.
- 少ししかだけ寝られなかった。I was able to only sleep a little. (Unnatural Japanese)
- 少しだけしか寝られなかった。I was only able to sleep a little. (Natural Japanese)
Examples
冷蔵庫には牛乳だけしかありません。
There is only milk in the refrigerator.
教室には生徒が一人だけしかいません。
There is only one student in the classroom.
私はひらがなだけしか書けません。
I can only write in hiragana.
うちの猫はこのキャットフードだけしか食べない。
My cat will only eat this brand of cat food.
昨日は三時間だけしか寝ていません。
I only slept for three hours yesterday.
先生が言ったこと、少しだけしか分かりませんでした。
I could only understand a little of what the teacher said.
あの人は自分のことだけしか考えていない。
That person only thinks about himself.
席はもうなくて、立ち見席だけしかありません。
There are no seats left; only standing room is available.
チャンスは一回だけしかありません。
You have only one chance.
窓からは海だけしか見えません。
I can see nothing but the sea from the window.
ケンジ：「今日、ゲームだけしかしてないでしょう？」
Kenji: 'You've done nothing but play video games today, haven't you?'
明日テストがあるから、今日は勉強だけしかできない。
Because I have a test tomorrow, I can only study today.