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Passive: forms - Grammar - Cambridge Dictionary
THE PASSIVE VOICE - Perfect English Grammar
Passives - LearnEnglish
English grammar:‘Passive voice’ - 知乎 - 知乎专栏
Active and passive voice | LearnEnglish - British Council
The Passive Voice In English (definition, Form, And Examples)
English grammar: Passive form of verbs | Learn English Today
Form: passive voice - Grammaring
Learn English - Passive Voice - English Grammar - ego4u.com
5.5: GRAMMAR- Using the Passive Voice - Humanities LibreTexts