Introduction to Passive Voice

In English, we can express an action in two grammatical voices: Active Voice and Passive Voice.

  • In the Active Voice, the subject of the sentence performs the action (e.g., The chef cooked the meal).
  • In the Passive Voice, the subject of the sentence receives the action (e.g., The meal was cooked by the chef).

The passive voice is a highly useful structure when we want to change the focus of a sentence or when the performer of the action is unknown or unimportant.

1. How the Passive Voice is Formed

To convert an active sentence to passive, we follow three steps:

  1. Move the object of the active sentence to the subject position of the passive sentence.
  2. Change the verb into the form of to be (matching the tense of the active verb) + the past participle (Verb 3) of the main verb.
  3. If necessary, place the original subject at the end of the sentence preceded by the preposition by (this is called the agent).

Basic Formula: Subject (receiver) + to be + Verb 3 (Past Participle) + (by + agent)

2. When to Use the Passive Voice

We use the passive voice for four main reasons:

  • The agent is unknown: The bank was robbed yesterday. (We do not know who did it).
  • The agent is obvious or unimportant: The street is swept every morning. (It is obvious that a street sweeper did it).
  • Focus is on the action/object: A new cure was discovered. (The cure is more important than the scientists).
  • To sound formal or objective: The experiment was conducted in a laboratory. (Typical in scientific or formal reports).

3. Sub-Lessons in this Module

Throughout this module, we will explore the passive voice in detail through six dedicated pages:

  1. Active vs. Passive Voice: Deep dive into structural shifts and identifying subjects/objects.
  2. Passive in Present Tenses: Forming the passive in Simple Present, Present Continuous, and Present Perfect.
  3. Passive in Past Tenses: Forming the passive in Simple Past, Past Continuous, and Past Perfect.
  4. Passive in Future & Modals: Forming the passive with will, going to, and modal auxiliaries (can, should, must).
  5. Passive with Double Objects: Dealing with sentences containing both direct and indirect objects.
  6. Advanced Passive Structures: Master advanced passive structures including the get-passive, passive infinitives and gerunds, impersonal passive, and causative passives.