割れる

1. Origins, structure, and basic meaning

• Structure: 割れる is an intransitive ichidan verb read われる for a hard object breaking or a surface cracking.
• Basic usage: It warns that a cup can break if dropped or describes dry ground remaining cracked.
  • このコップは落とすと割れるので、丁寧に扱ってください。 warns that the cup will break if dropped; 乾いた地面が細かく割れていました。 describes the dry ground as finely cracked.

2. Common pitfalls and similar expressions

• Condition 落とすと
  • と presents dropping the cup as a condition that regularly produces the result of breaking.
• State in 割れている
  • 割れていました indicates that the change of cracking occurred and the resulting state continued.
• 割れる and 割る
  • 割れる is intransitive for something breaking or cracking, while 割る(わる) is transitive for someone breaking or dividing something.