This Foot Pain On Outside Edge Is Surprisingly Common In Walkers

I would bet a lot of money that the majority of instances that contain "by foot" are from English Language websites and forums instructing learners on the difference between "on foot" and "by foot". I don't. For example, to answer the question, "How tall are you?" valid answers include: Five feet. Five foot three. Five feet, three inches. Why the discrepancy between feet and foot, seemingly only in the I would say “go by foot”, but it seems that “go on foot” is used more often. Which one is right? Are both right? Does it depend on the context? Edit: Searching with Google yields 26,000,000 results for “on. Jul 18, 2018 · First time poster to this forum. I've recently started to notice a lot of people using the phrase "step foot" as a replacement for "set foot", eg. I wouldn't step foot in that restaurant I find. While we normally use both our feet to walk, why is it grammatically acceptable to say "on foot" not "on feet"?