といえども
(To ie domo)
although / even though (literary).
Connection rules
- +Plain-form clause / noun + といえども.
- +Very formal / literary concessive — rare in casual speech.
- +More formal than 〜とはいえ or 〜にしても.
Examples
1.
子供といえども、約束は守るべきだ。

Kodomo to ie domo, yakusoku wa mamoru beki da.
Even a child should keep a promise.
「although / even though (literary)」
2.
プロといえども、失敗することはある。

Puro to ie domo, shippai suru koto wa aru.
Even a professional sometimes fails.
「although / even though (literary)」
Practice
Even though one is a professional chef, anyone can make a mistake occasionally.
___、時には失敗することもある。
Romaji also accepted