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:
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:
努力こそしたが、結果は出なかった。感謝こそすれ、怒ってはいない。問題こそあるが、解決できる範囲だ。
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:
難しいことこそあるが、不可能ではない。嬉しさこそ感じたが、涙は出なかった。
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
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:
- Works with any appropriate verb (する, ある, わかる, etc.)
- Slightly less literary, fits both spoken and written Japanese.
- Example:
お金こそあるが、自由な時間がない。
こそあれ:
- A fixed classical pattern using the 已然形 of ある → あれ.
- Implies “there is/are indeed … but”. Highly formal, often in written or formulaic speech.
- Example:
困難こそあれ、諦めるわけにはいかない。
Quick contrast:
問題こそあるが、大丈夫だ。問題こそあれ、進むしかない。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」
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
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.
Practice questions for こそ「～が・けれど」
Use こそ～が to express “I have a car, but I rarely drive it.”
possession → unusedWrite a sentence about a skill you have (e.g., cooking) that you don’t enjoy using.
ability → reluctanceCompose a line where someone admits a mistake but explains why it happened.
fault → reasoningContrast こそあったが with こそあれ in two similar sentences and note how the tone shifts.
register comparisonKeep 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.
努力こそしたが until it feels like a chunk.Related grammar to review next
- こそあれ — because it also emphasises a concession with こそ, but is more fixed and literary
- こそすれ — because it is a specific, common variant using すれ, worth learning together
- ことごとく — because it too appears in formal, emphatic statements about the way things happen
- 極まる・極まりない — 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.
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FAQ about こそ「～が・けれど」
What does こそ「～が・けれど」 (koso ~ ga/keredo) mean in Japanese?
こそ「～が・けれど」 (koso ~ ga/keredo) means “but; although (emphasis)”. It is JLPT N1 grammar. 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.
How do you form こそ「～が・けれど」 (koso ~ ga/keredo)?
The pattern follows this general attachment rule: Noun + こそ + Verb(plain form, often 已然形) + 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.
What is the difference between こそ「～が・けれど」 and こそあれ?
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: お金こそあるが、自由な時間がない。. こそあれ: A fixed classical pattern using the 已然形 of ある → あれ.; Implies “there is/are indeed … but”. Highly formal, often in written or formulaic speech.; Example: 困難こそあれ、諦めるわけにはいかない。.
What is an example sentence with こそ「～が・けれど」 (koso ~ ga/keredo)?
努力こそしたが、結果は出なかった。 — I did make an effort, but I didn't get any results.