In English, active and passive voice are two ways to structure sentences, depending on whether the subject of the sentence performs the action (active voice) or receives the action (passive voice).

1. Active Voice

In active voice, the subject of the sentence performs the action. The structure is:
Subject + Verb + Object

  • Example 1: The chef (subject) cooked (verb) a delicious meal (object).
  • Example 2: The teacher (subject) praised (verb) the students (object).

In these examples, the focus is on who is performing the action.

2. Passive Voice

In passive voice, the subject of the sentence receives the action. The structure is:
Object + form of “to be” + Past Participle + by + Subject (optional)

  • Example 1: A delicious meal (object) was cooked (verb) by the chef (subject).
  • Example 2: The students (object) were praised (verb) by the teacher (subject).

Here, the focus is on what happens to the object or who receives the action. The “doer” of the action (the subject in the active sentence) may or may not be mentioned.

Key Differences Between Active and Passive Voice:

Emphasis:

    • In the active voice, emphasis is on the person or thing performing the action.
    • In the passive voice, emphasis is on the action itself or the person/thing receiving the action.

    Clarity:

      • Active voice tends to be clearer and more direct.
      • Passive voice can be more formal or less direct, sometimes used when the “doer” is unknown or not important.

      Form of Verb:

        • In active voice, the verb is in its normal form.
        • In passive voice, the verb includes a form of “to be” (is, was, were, etc.) + the past participle of the main verb.

        When to Use Passive Voice:

        When the subject is unknown:

          • Active: Someone stole my bike.
          • Passive: My bike was stolen. (Here, we don’t know who stole the bike.)

          When the action is more important than the subject:

            • Active: The company will release the product next year.
            • Passive: The product will be released next year. (The focus is on the product release, not the company.)

            In formal writing (e.g., scientific or official reports):

              • Active: We tested the hypothesis in the lab.
              • Passive: The hypothesis was tested in the lab. (Passive voice makes it sound more formal and objective.)

              More Examples:

              Active:

              • The cat (subject) chased (verb) the mouse (object).
              • The scientist (subject) discovered (verb) a new element (object).

              Passive:

              • The mouse (object) was chased (verb) by the cat (subject).
              • A new element (object) was discovered (verb) by the scientist (subject).

              Changing Active to Passive:

              To convert a sentence from active to passive:

              1. Move the object of the active sentence to the subject position of the passive sentence.
              2. Change the verb into a form of “to be” + past participle.
              3. The subject of the active sentence becomes the “agent” in the passive sentence (introduced by “by”), but it can be omitted if not important.

              Active: The government (subject) launched (verb) a new policy (object).
              Passive: A new policy (object) was launched (verb) by the government (subject).

              Published by Pragyanxetu

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