Breakdown of pureininzuu wa saki ni kakuninsuru ni koshita koto wa nai.
Questions & Answers about pureininzuu wa saki ni kakuninsuru ni koshita koto wa nai.
に越したことはない is a fixed grammar pattern meaning:
- there’s nothing better than ...
- it’s best to ...
- you can’t go wrong by ...
- it would be preferable to ...
So in this sentence, 確認するに越したことはない means something like it’s best to check or you should check if possible.
It often has the nuance that doing something is the safer, wiser, or more desirable choice.
