行く

1. Origins, structure, and basic meaning

• Structure: 行く is read as いく and is a verb meaning to go from the current point toward another place.
• Basic usage: A destination appears in 図書館へ行く, while going somewhere and returning appears in 駅まで行ってくる.

2. Common pitfalls and similar expressions

• Destination particles
  • A destination may take へ or に, while まで marks the point reached.
• Difference from 来る
  • 行く describes movement away from the current reference point, whereas 来る describes movement toward the speaker or conversational reference point.