開始

1. Origins, structure, and basic meaning

• Structure: In 開始 (かいし), opening 開 and beginning 始 combine to denote commencement.
• Basic usage: 開始します politely announces that a person or organization will begin something, while 開始された passively states that something was begun.

2. Common pitfalls and similar expressions

• Polite active and passive forms
  • The initiator and the thing begun occupy different roles.