In this guide on **Voice**, we explore the essential concepts of voice in grammar, starting with its definition and the different types of voice. We then cover key differences between active and passive voice, along with the formation of passive voice, including its use with various tenses and modal verbs. The section on impersonal passive highlights its unique structure, while exceptions and reflexive passive are also discussed. Additionally, we provide a detailed explanation on converting active voice to passive voice and when it is appropriate to use passive voice. The guide concludes with common mistakes to avoid and practice exercises to reinforce the concepts learned.
Voice refers to the relationship between the subject and the verb in a sentence. It indicates whether the subject of the sentence is performing the action (active voice) or receiving the action (passive voice).
Oxford Learner’s Dictionary: The form of a verb that shows whether the subject of a sentence is performing the action (active voice) or having the action done to it (passive voice).
Cambridge Dictionary: The grammatical feature that shows whether the subject of a verb is the doer (active voice) or the receiver of an action (passive voice).
Merriam-Webster Dictionary: A characteristic of verbs that indicates the relationship between the subject and the action, showing whether the subject acts (active voice) or is acted upon (passive voice).
Collins English Dictionary: The form of a verb that shows whether the subject performs or receives the action.
There are three main types of voice:
Active voice is a sentence structure in which the subject of the sentence performs the action expressed by the verb. It makes sentences clear, direct, and often more engaging. The structure follows: Subject + Verb + Object.
In passive voice, the object of the action becomes the subject of the sentence, and the subject is either omitted or becomes the agent introduced by "by". The structure follows: Subject + Auxiliary Verb (to be) + Past Participle of the Main Verb + (by + Agent).
Example:
Causative voice shows that the **subject causes someone else to do something** or **causes something to happen**. Common causative verbs: make, have, get, let, cause, help. The structure is: Subject + Causative Verb (have, get) + Object + Past Participle.
Example:
**Voice** refers to the relationship between the subject and the action of the verb. There are two types of voice:
Feature | Active Voice | Passive Voice |
---|---|---|
Focus | Subject (doer of action) | Object (receiver of action) |
Structure | Subject + Verb + Object | Object + Be Verb + Past Participle (+ by Subject) |
Usage | More direct and engaging | More formal or when the doer is unknown or unimportant |
Example | The chef cooked the meal. | The meal was cooked by the chef. |
Passive voice is formed by using the verb **"to be"** in the appropriate tense + the **past participle** of the main verb. The subject of the active sentence becomes the **agent** (introduced by "by" if necessary), while the object of the active sentence becomes the subject of the passive sentence.
Tense | Active Voice | Passive Voice |
---|---|---|
Present Simple | She writes a letter. | A letter is written (by her). |
Present Continuous | She is writing a letter. | A letter is being written (by her). |
Present Perfect | She has written a letter. | A letter has been written (by her). |
Past Simple | She wrote a letter. | A letter was written (by her). |
Past Continuous | She was writing a letter. | A letter was being written (by her). |
Past Perfect | She had written a letter. | A letter had been written (by her). |
Future Simple | She will write a letter. | A letter will be written (by her). |
Future Perfect | She will have written a letter. | A letter will have been written (by her). |
Modals | She can write a letter. | A letter can be written (by her). |
Tense refers to the time of an action or event. In English, there are three main tenses, each with four aspects:
Voice refers to whether the subject performs or receives the action of the verb. There are two voices in English:
Tense | Active Voice | Passive Voice |
---|---|---|
Simple Present | He writes a letter. | A letter is written by him. |
Present Continuous | He is writing a letter. | A letter is being written by him. |
Present Perfect | He has written a letter. | A letter has been written by him. |
Simple Past | He wrote a letter. | A letter was written by him. |
Past Continuous | He was writing a letter. | A letter was being written by him. |
Past Perfect | He had written a letter. | A letter had been written by him. |
Simple Future | He will write a letter. | A letter will be written by him. |
Future Perfect | He will have written a letter. | A letter will have been written by him. |
The **impersonal passive** is a structure used when the focus is on the action or event rather than the person or thing performing the action. It's often used when the subject of the sentence is unknown, irrelevant, or general.
In the impersonal passive, we typically use the structure:
"It + passive verb"
**Examples:**
Modal verbs can be used in the passive voice, but the structure needs to be adjusted slightly. The formula for passive voice with modal verbs is:
Subject + Modal verb + be + past participle of the main verb + (by + agent)
1. **Can**:
2. **Should**:
3. **Must**:
4. **May**:
5. **Would**:
6. **Might**:
Passive voice is used to shift the focus from the subject performing the action to the recipient of the action. This is commonly done with transitive verbs (verbs that take a direct object).
1. **Active voice**:
2. **Passive voice**:
While most sentences can be converted into the passive voice, there are a few exceptions where it either doesn't work or sounds unnatural. Here are the main exceptions:
1. Verbs that do not take a direct object (intransitive verbs): Intransitive verbs do not have a direct object, so they cannot form passive voice.
- **Example:**
2. Verbs of perception (like "see," "hear," etc.): When these verbs are used in sentences where there is no direct object, they can't be made passive.
- **Example:**
3. Verbs that are typically used in a stative sense (like "belong," "seem," "exist"): These verbs often express states rather than actions, so they generally do not appear in the passive voice.
- **Example:**
4. Verbs with a direct object but no clear agent (for example, "seem," "belong"): Some verbs imply action or states but do not have a clear "doer," making passive constructions awkward or meaningless.
- **Example:**
5. Modal Verbs: When using modal verbs like "can," "should," or "must," it's possible to form passive sentences, but it can be awkward depending on the context.
- **Example:**
6. Reflexive Verbs: Verbs used reflexively (where the subject and object are the same) generally do not work in the passive voice.
- **Example:**
The reflexive passive voice in English is a construction that combines the reflexive form of a verb with a passive structure. It indicates that the subject both performs and receives the action, and the verb is in a passive voice.
In reflexive passive voice, the sentence structure typically uses a reflexive pronoun (e.g., "myself," "yourself," "himself," "herself," "itself," "ourselves," "themselves") along with the passive verb.
To convert a sentence from active voice to passive voice, follow these steps:
### 1. **Identify the Subject, Verb, and Object**:
### 2. **Change the Object to the Subject**:
### 3. **Use the Correct Form of the Auxiliary Verb "to be"**:
### 4. **Optionally, Add the Original Subject**:
1. **Active Voice**:
2. **Active Voice**:
3. **Active Voice**:
Passive voice is used in English when the focus is on the **action** or the **object** of the action, rather than the **doer** (subject). It's often used in the following situations:
1. When the doer is unknown or unimportant:
Example:
2. When the doer is less important than the action or object:
Example:
3. When the doer is obvious or implied:
Example:
4. In scientific or formal writing:
Example:
5. To maintain objectivity:
Example:
In contrast, **active voice** emphasizes the subject performing the action, making it more direct and clear. For instance:
Here are some common mistakes to avoid, especially regarding voice:
1. Confusing Active and Passive Voice: Using passive voice unnecessarily.
2. Omitting the Agent in Passive Voice: Leaving out the agent (the one performing the action) when it's important for clarity.
3. Incorrect Tense Usage in Passive Voice: Using the wrong tense when converting to passive voice.
4. Using Passive Voice in Situations Where Active is Better: Overusing passive voice can make sentences sound weak or unclear.
5. Incorrect Use of Modals in Passive Voice: Misplacing modals in passive sentences.
6. Not Recognizing When Active Voice is Preferable: Using passive voice when active voice would be clearer and more direct.
Here are some practice exercises on voice (active and passive voice):
Exercise 1: Convert the following sentences into passive voice.
Exercise 2: Rewrite the following sentences in active voice.
Exercise 3: Determine whether each sentence is in active or passive voice.