# こそ「～が・けれど」: but; although (emphasis) > Learn how to use こそ「～が・けれど」, a JLPT N1 Japanese grammar point meaning but; although (emphasis), with structure, nuance, examples, mistakes, and comparisons. JLPT level: N1 · Updated: 2026-05-18 · Canonical: https://hane-app.com/blog/n1-koso-ga-keredo/ **こそ「～が・けれど」** means **but; although (emphasis)**. It is a **JLPT N1** Japanese grammar pattern used to acknowledge a fact strongly before introducing a contrasting outcome or judgment. This pattern appears in formal speech, essays, and JLPT N1 reading questions. When you want to concede a point in a way that feels deliberate and emphatic, **こそ～が/けれど** gives your Japanese a mature, precise edge. ## What does こそ「～が・けれど」 mean? Use **こそ「～が・けれど」** when you want to emphasize that a certain condition or fact is true, but the result or next statement does not follow naturally from it. Natural translations include: - but; although (emphasis); it is true that … however The structure puts weight on the first clause. The speaker is saying, “I’m not denying this — but even so, the other thing is the case.” It’s a concession wrapped in emphasis. ## How to form こそ「～が・けれど」 The pattern follows this general attachment rule:
Noun + こそ + Verb(plain form, often 已然(いぜん)形(けい)) + が / けれど
The verb is often **する** (in forms like した, すれ, する), **ある**, or whichever verb fits the situation. The noun before こそ is the thing being acknowledged. Some common patterns:
努力(どりょく)こそしたが、結果(けっか)は出(で)なかった。
感謝(かんしゃ)こそすれ、怒っ(おこっ)てはいない。
問題(もんだい)こそあるが、解決(かいけつ)できる範囲(はんい)だ。
For i‑adjectives, you cannot attach こそ directly to the adjective itself. Instead, use a construction like ～ことこそ or ～さこそ before the verb:
難しい(むずかしい)ことこそあるが、不可能(ふかのう)ではない。
嬉し(うれし)さこそ感じ(かんじ)たが、涙(なみだ)は出(で)なかった。
## When is こそ「～が・けれど」 used? Use **こそ～が/けれど** in situations like: - conceding a strong point before a counter‑argument - expressing a realistic evaluation despite a clear merit or demerit - softening a complaint by first acknowledging the positive Tone and register: - Formal to semi‑formal; often appears in writing, debates, and formal explanations. - The けれど version leans slightly more conversational than が. ## こそ「～が・けれど」 example sentences
努力(どりょく)こそしたが、結果けっかは出でなかった。
I did make an effort, but I didn't get any results.
effort → disappointing outcome
感謝かんしゃこそすれ、文句もんくなんてない。
I'm grateful—far from complaining.
emphatic positive, contrast with negative
才能さいのうこそあるが、努力どりょくを続つづけられない。
He has talent, indeed, but he can't keep up the effort.
acknowledgement → weakness
準備じゅんびこそ万全ばんぜんだったが、本番ほんばんでミスした。
I had prepared perfectly, but I made a mistake during the actual performance.
ideal preparation → failure
問題もんだいこそ多おおかったが、何なんとか解決かいけつできた。
There were many problems, but I managed to solve them somehow.
difficulty → overcome
After reading each sentence, ask what job **こそ～が/けれど** is doing: it takes a point you can’t deny and sets up a contrast. That makes its role clearer than any single English word. ## Nuance of こそ「～が・けれど」 The key nuance is **deliberate concession**. The speaker stops to affirm something fully before moving on. This isn’t a simple “but” — it’s an intentional nod. The effect can be persuasive in argument, or soften a complaint by showing you’ve considered the other side. For example, 努力(どりょく)こそしたが implies “Yes, I truly did make an effort — and yet…” That emotional weight is absent in a plain 努力(どりょく)したが, which would be neutral. ## こそ「～が・けれど」 vs こそあれ Both patterns use **こそ** to emphasise a concession, but they differ in scope and feel.
こそ「～が・けれど」
general concession with any verb
こそあれ
fixed phrase with ある only
vs
When to use which
**こそ～が/けれど**: - Works with any appropriate verb (する, ある, わかる, etc.) - Slightly less literary, fits both spoken and written Japanese. - Example: お金(かね)こそあるが、自由(じゆう)な時間(じかん)がない。 **こそあれ**: - A fixed classical pattern using the 已然(いぜん)形(けい) of ある → あれ. - Implies “there is/are indeed … but”. Highly formal, often in written or formulaic speech. - Example: 困難(こんなん)こそあれ、諦める(あきらめる)わけにはいかない。 Quick contrast:
問題(もんだい)こそあるが、大丈夫(だいじょうぶ)だ。
There are problems, but it’s okay.
問題(もんだい)こそあれ、進む(すすむ)しかない。
Though problems certainly exist, we have no choice but to move forward.
If you’re in a casual conversation, こそあるが is more natural. If you want a dignified, slightly stiff tone, こそあれ fits. (See こそあれ for more.) ## Common mistakes with こそ「～が・けれど」
❌
嬉しい(うれしい)こそあったが、複雑(ふくざつ)な気持ち(きもち)だ。
✅
嬉し(うれし)さこそあったが、複雑(ふくざつ)な気持ち(きもち)だ。
i‑adjectives cannot stand directly before こそ + verb. Use the noun form (さ, こと, etc.).
❌
努力(どりょく)こそをしたが、意味(いみ)がなかった。
✅
努力(どりょく)こそしたが、意味(いみ)がなかった。
Do not insert を after こそ. The noun is already emphasised by こそ; no object‑marking particle is needed.
❌
才能(さいのう)こそはあるが、活かせ(いかせ)ていない。
✅
才能(さいのう)こそあるが、活かせ(いかせ)ていない。
The particle は after こそ is redundant and makes the sentence clunky. こそ already marks the topic‑like emphasis.
A great way to internalise the pattern is to write a sentence with **こそ～が**, then rewrite it without こそ (only は or が). Observe how the emphasis disappears and the concession feels weaker. ## Is こそ「～が・けれど」 on the JLPT? Yes. **こそ～が/けれど** is a hallmark of **JLPT N1** grammar. That means learners should be able to: - recognise it in advanced reading passages - understand its emphatic concessive nuance - produce accurate sentences using common nouns and verbs
N1

こそ～が・けれど appears in multiple‑choice grammar sections and reading comprehension. Expect questions that test whether you can distinguish it from simpler patterns like ～が or ～ても that lack the emphasis.

✔ Grammar recognition ✔ Nuance understanding ✔ Sentence building
## Practice questions for こそ「～が・けれど」
1.

Use こそ～が to express “I have a car, but I rarely drive it.”

possession → unused
2.

Write a sentence about a skill you have (e.g., cooking) that you don’t enjoy using.

ability → reluctance
3.

Compose a line where someone admits a mistake but explains why it happened.

fault → reasoning
4.

Contrast こそあったが with こそあれ in two similar sentences and note how the tone shifts.

register comparison
Keep your first attempts short; the pattern is powerful with just a noun + simple verb. Once you’re comfortable, layer in more context so the concession feels natural. ## Learning path for こそ「～が・けれど」 To master **こそ～が/けれど**, treat it as a three‑step climb.
1
Memorise the formation: noun + こそ + verb + が/けれど. Say out loud the example 努力(どりょく)こそしたが until it feels like a chunk.
2
Compare with こそあれ. Write three pairs of sentences — one with こそ～が, one with こそあれ — and decide which fits a formal essay vs a chat.
3
Expand to less common verbs (わかる, できる, etc.). Create concessive statements about your own life, then check them with a native speaker or grammar checker.
4
Finally, combine こそ～が with an ending that feels Japanese‑natural: a soft suggestion (かもしれない), a resolution (ようと思う(おもう)), or an emotional reaction (悔しい(くやしい)). This turns a grammar exercise into real expression.
## Related grammar to review next - [こそあれ](/blog/n1-koso-are/) — because it also emphasises a concession with こそ, but is more fixed and literary - [こそすれ](/blog/n1-koso-sure/) — because it is a specific, common variant using すれ, worth learning together - [ことごとく](/blog/n1-koto-gotoku/) — because it too appears in formal, emphatic statements about the way things happen - [極まる(きわまる)・極まりない(きわまりない)](/blog/n1-kiwamaru-kiwamarinai/) — because it attaches to nouns/adjectives to express extreme degree, pairing well with contrastive patterns ## Learn こそ「～が・けれど」 with Hane Once you grasp the rhythm of **こそ～が/けれど**, keep it fresh with short, focused practice sessions. Hane helps you weave this pattern into a larger web of N1 grammar, so the nuance sticks. 📱 **Practice こそ～が/けれど and more with Hane**
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