歩行

1. Origins, structure, and basic meaning

• Structure: 歩行(ほこう) is a noun meaning walking, moving on foot.
• Basic usage: It is used when describing walking conditions, the manner of walking, or difficulty walking.

2. Common pitfalls and similar expressions

• Manner and difficulty
  • 慎重な歩行 means cautious walking, with な linking the description to the noun.
  • 歩行が難しい means walking is difficult; が marks what is described as difficult.