Pattern: passive-by

Structure Overview

Formula: be + V3 + by + Noun
Core Meaning: Used in passive voice sentences to explicitly introduce the agent (the person or thing performing the action).

💬 Contextual Examples

The new policy was implemented by the management team in early spring.
The beautiful portrait was painted by her grandfather during the war.

🎴 Interactive Web Practice (Click to Reveal)

Practice 1: The historic treaty was signed ______ the two rival leaders.

Answer: by

Practice 2: The marathon was won ______ a relatively unknown runner.

Answer: by

🔗 Knowledge Base Connections

🔑 Parent Keyword: by