> "sharpen" should be applied to the skill, not the person? ("sharpen your daily English") Possibly depends on the dialect. "Sharpen your skills" is probably m

> "sharpen" should be applied to the skill, not the person? ("sharpen your daily English") Possibly depends on the dialect. "Sharpen your skills" is probably more common, but applying it to the person (e.g. "This will sharpen you up") sounds fine to me as a British English speaker (though if specifying a specific skill in the same sentence you probably wouldn't use that form). > But I think the most glaring issue is the way you use commas (lots of unnecessary commas, comma splices, and parallel structure violations). Definitely true, but that can also be a trait of some native speakers, FWIW. Some of my sentences have a ton of unneeded commas and "loose" clauses when I first write them, until I refactor them to make them more correct. It's certainly not exclusive to non-native speakers.