Pointing to problems without suggesting solutions As a peer reviewer, I sometimes feel there are issues in the manuscript but I'm not sure how they should be corrected/addressed, partly due to my inadequate expertise in those exact issues.

I also sometimes find some words/terms are incorrectly used, but as a non-native speaker I can't easily suggest alternatives.

Should I just point to such issues anyway, or ignore them since I couldn't suggest solutions?
Does "peer review" mean you have to re-write the material, or just point out where the flaws may be and the author is meant to sort them?

I suggest it is the latter, so point them out and expect the author to edit / correct or justify what they meant.