「It's true that ~, but that fact isn't very important, ...。」
例:
1. 彼からの手紙は読んだことは読んだんですが、意味がよくわかりませんでした。
I did read the letter from him, but I didn't really understand what it meant.
2. わたしは泳げることは泳げますが、長い距離はだめなんです。I can swim, but I can't do long distances.
3. この本は高いことは高いが、写真が多くて楽しめそうです。This book is expensive, but it has lots of photos and looks like it will be enjoyable.
4. 子どもを育てるのは大変なことは大変だが、成長が楽しみで大変さを忘れる。Raising children is certainly hard, but the joy of watching them grow makes you forget how tough it is.