Translation of "Valiantly" in Japanese

You have acted valiantly and given me the greatest services...

あなたは勇敢に行動し、私に最高のサービスを与えてくれました…

The soldiers fought valiantly, but finally they had to give in.

その兵士たちは勇敢に戦ったが、結局降伏しなければならなかった。

- Since my brother died suddenly two years ago, my sister-in-law has valiantly kept going the small jewellery store he left her.
- My brother died suddenly two years ago. Since then, my sister-in-law has valiantly kept the small jewelery store he left her going.

兄が急逝したのは２年前、義姉は一人兄の遺した小さな宝飾店を健気に守ってきた。

Since my brother died suddenly two years ago, my sister-in-law has valiantly kept going the small jewellery store he left her.

兄が急逝したのは２年前、義姉は一人兄の遺した小さな宝飾店を健気に守ってきた。