被动语态

被动语态（be + 过去分词）适用于所有时态——助动词随时态变化，而过去分词保持不变。如果需要提及动作的执行者，请使用 "by"。

Examples

• The report is being written by the team.
• The project will be finished by Friday.
• The house has been sold.
• The bridge was being built for two years.
• Mistakes had been made before the review.

Common Mistakes

Practice

Mini Quiz