Understanding Voice: Active to Passive Conversion

The question asks us to transform the given sentence from active voice to passive voice. The original sentence is: Dr. Verma advised patients to try out a new medicine for migraine.

Let's first understand the difference between active and passive voice.

• Active Voice: In an active sentence, the subject performs the action. The structure is typically Subject + Verb + Object.
• Passive Voice: In a passive sentence, the subject receives the action. The structure is typically Object + verb 'to be' + Past Participle of the main verb + (by + Subject).

Analyzing the Given Active Sentence

Let's break down the sentence "Dr. Verma advised patients to try out a new medicine for migraine."

• Subject: Dr. Verma (This is who performed the action)
• Verb: advised (This is the action)
• Tense of the verb: Simple Past Tense
• Object: patients (This is who received the action of being advised)
• Remaining part of the sentence: to try out a new medicine for migraine (This is an infinitive phrase explaining what they were advised to do)

Converting Simple Past Active to Passive Voice

The rule for converting a simple past tense active sentence to a passive sentence is:

Object + was/were + Past Participle of the main verb + (remaining part) + by + Subject

Applying the Rule to the Sentence

Following the rule:

1. Identify the Object: patients
2. Choose 'was' or 'were': Since 'patients' is plural, we use were.
3. Find the Past Participle of the verb 'advised': advised
4. Add the remaining part: to try out a new medicine for migraine
5. Add 'by' and the original Subject: by Dr. Verma

Putting it all together, the passive form is: Patients were advised to try out a new medicine for migraine by Dr. Verma.

Evaluating the Options for Passive Voice

Now let's examine the given options based on our derived passive sentence:

Conclusion on the Correct Passive Form

Based on the conversion rules for simple past tense active voice sentences, Option 3 correctly transforms the sentence into its passive form.

Revision Table: Active vs. Passive Voice

Additional Information on Verb Voice Transformation

Verb voice indicates whether the subject of a sentence performs or receives the action. Mastering voice transformation is crucial for varying sentence structure and emphasis in writing.

• The passive voice is often used when the performer of the action is unknown, unimportant, or obvious from the context, or when we want to emphasize the action or the recipient of the action.
• Not all verbs can be used in the passive voice. Intransitive verbs (verbs that do not take an object) cannot be made passive. For example, "He slept." cannot be changed to passive.
• When converting to passive voice, the object of the active sentence becomes the subject of the passive sentence. The original subject is often included in a "by..." phrase, but it can be omitted if it's not important.
• Understanding the tense of the original sentence is key, as the passive structure must match the original tense (using the correct form of 'to be' + past participle). For simple past, it's 'was' or 'were' + past participle. For simple present, it's 'am', 'is', or 'are' + past participle, and so on for other tenses.