although; but
Expresses concession, meaning 'although' or 'but', by framing a positive quality and then introducing a negative contrasting point.
This pattern literally means 'the fact that... is (true), but...'. You state that something is indeed the case, then follow with a 'but' to show a limitation or a contrasting feeling. It's a softer, more nuanced way to say 'although' compared to けど or が alone. The repeated verb or adjective makes it emphatic: you acknowledge the positive, then give the negative side.
Use this when you want to sound thoughtful or slightly formal. For example, you might say that a dish is tasty, but expensive. The pattern often pairs an affirmative with its negative form, like 安いことは安いが (it's cheap, but...) or 好きなことは好きだが (I do like it, but...). The second part carries the real message.
In conversation, this pattern is not as common as けど, but it's a natural, polished way to concede a point. It's useful for JLPT N3 reading and listening, and for writing semi-formal emails or opinions.