Changing Active Voice to Passive Voice

Key Grammar Points

1. Understanding Active and Passive Voice:

   • Active Voice: The subject does the action.
     Example: "The cat (subject) chased (verb) the mouse (object)."
   • Passive Voice: The subject gets the action.
     Example: "The mouse (subject) was chased (verb) by the cat (agent)."

2. Steps to Change Active to Passive:

   • First, find the object in the active sentence.
   • Next, move the object to the front of the passive sentence.
   • Then, use the right form of the verb "to be" + past form of the main verb.
   • You can also add the original subject as the agent if you want (but it’s optional).

3. Examples of Verb Forms:

   • Present:
     Active: "She writes a letter."
     Passive: "A letter is written by her."

   • Past:
     Active: "He completed the project."
     Passive: "The project was completed by him."

   • Future:
     Active: "They will announce the results."
     Passive: "The results will be announced by them."

4. Matching Subjects and Verbs:

   • Make sure the subject and verb agree in number and time.
     Example: "The cake (singular) is baked." vs. "The cakes (plural) are baked."

5. Using Helping Verbs:

   • You can also use helping verbs in passive sentences.
     Active: "They can finish the work."
     Passive: "The work can be finished by them."

By practicing these steps, you can easily switch sentences from active to passive voice while keeping your grammar correct.