How to Change Active to Passive Voice in Past Continuous Tense

The past continuous tense is used to describe actions that were in progress at a specific time in the past. When a sentence is changed from active voice to passive voice in the past continuous tense, the object of the active sentence becomes the subject of the passive sentence. The main verb changes into its past participle form (V3), and the helping verbs was being or were being are used according to the new subject.

Structure of Active to Passive Voice Sentences in Past Continuous Tense

• Active Voice:

Subject + was / were + Verb-ing + Object

• Passive Voice:

Object + was being / were being + Verb (V3) (+ by + Subject)

Helping Verbs in Past Continuous Passive

• was being → used with singular subjects (he, she, it, singular nouns)
• were being → used with plural subjects (we, you, they, plural nouns)

Examples of Positive Sentences

• Active: Ali was writing a letter.
• Passive: A letter was being written by Ali.
• Active: They were playing hockey.
• Passive: Hockey was being played by them.
• Active: She was cleaning the room.
• Passive: The room was being cleaned by her.

Examples of Negative Sentences

• Active: Ali was not writing a letter.
• Passive: A letter was not being written by Ali.
• Active: They were not playing hockey.
• Passive: Hockey was not being played by them.
• Active: She was not cleaning the room.
• Passive: The room was not being cleaned by her.

Examples of Interrogative Sentences

• Active: Was Ali writing a letter?
• Passive: Was a letter being written by Ali?
• Active: Were they playing hockey?
• Passive: Was hockey being played by them?
• Active: Was she cleaning the room?
• Passive: Was the room being cleaned by her?

More Examples for Better Understanding

• Active: The teacher was explaining the answer.
• Passive: The answer was being explained by the teacher.
• Active: The chef was cooking food.
• Passive: Food was being cooked by the chef.
• Active: The teacher was not explaining the answer.
• Passive: The answer was not being explained by the teacher.
• Active: The chef was not cooking rice.
• Passive: Rice was not being cooked by the chef.
• Active: Was the teacher explaining the answer?
• Passive: Was the answer being explained by the teacher?
• Active: Was the chef cooking food?
• Passive: Was food being cooked by the chef?

Key Points to Remember

• Passive voice in the past continuous tense uses was being / were being + past participle (V3).
• This tense shows an action that was in progress in the past.
• The object of the active sentence becomes the subject of the passive sentence.
• For negative sentences, place not after was / were.
• For interrogative sentences, place was / were at the beginning of the sentence.
• “By + subject” is optional and can be omitted if the doer is unknown or unimportant.