走る

1. Origins, structure, and basic meaning

• Structure: Spelling: 走る. Reading: はしる. Core meaning: to run.
• Basic usage: Representative examples: 毎朝、弟は川沿いを走る / 犬が庭を元気に走っていた.

2. Common pitfalls and similar expressions

• Route and progressive form
  • 川沿いを走る and 庭を走る mark the route with を. Ongoing action uses 走っている; the particle marks the traversed route, not a destination.