Understanding Passive Voice Transformation

The question asks us to select the correct passive voice transformation of the sentence: "The plumber has not yet fixed the leakage in the tap."

To transform an active voice sentence into passive voice, we follow specific rules based on the verb tense.

Analyzing the Original Sentence

Let's break down the given active voice sentence:

• Subject: The plumber
• Verb: has not yet fixed (This is in the Present Perfect Tense, negative form)
• Object: the leakage in the tap

Rules for Present Perfect Active to Passive Transformation

When converting a sentence from Present Perfect Active to Passive voice, the structure changes as follows:

• The object of the active sentence becomes the subject of the passive sentence.
• The verb structure changes from \(\text{has/have + past participle}\) to \(\text{has/have + been + past participle}\).
• The original subject becomes the agent and is introduced by the preposition 'by'.
• Adverbs like 'yet' are usually placed between the auxiliary verb ('has' or 'have') and 'been'.

The general structure for Present Perfect Passive is:

\(\text{New Subject + has/have + been + Past Participle + by + Original Subject (Agent)}\)

For negative sentences like the one given, the structure is:

\(\text{New Subject + has/have + not + been + Past Participle + by + Original Subject (Agent)}\)

Applying the Transformation

Using the rules and the components of our sentence:

• New Subject: "The leakage in the tap" (This is singular, so we will use 'has')
• Verb: "has not yet fixed" becomes "has not yet been fixed"
• Agent: "by the plumber"

Combining these parts, the passive voice sentence is: "The leakage in the tap has not yet been fixed by the plumber."

Evaluating the Options

Let's look at the given options and compare them to our transformed sentence:

• Option 1: The leakage in the tap has not yet fixed the plumber.

  This is incorrect. The new subject ("The leakage in the tap") is performing the action ("fixed") on the original subject ("the plumber"), which is the opposite of passive voice.

• Option 2: The leakage in the tap had not yet been fixed by the plumber.

  This is incorrect. It uses the Past Perfect tense ("had been fixed") instead of the Present Perfect tense ("has been fixed") required for this transformation.

• Option 3: The leakage in the tap have not yet been fixed by the plumber.

  This is incorrect. The subject "The leakage in the tap" is singular and requires the auxiliary verb "has", not "have".

• Option 4: The leakage in the tap has not yet been fixed by the plumber.

  This matches the sentence we constructed by applying the correct rules for Present Perfect active to passive transformation. The singular subject "The leakage in the tap" correctly uses "has", followed by "not yet been fixed" (the passive verb form), and the agent "by the plumber".

Based on the analysis, Option 4 is the correct passive voice transformation.

Revision Table: Active vs. Passive (Present Perfect)

Additional Information: Why Use Passive Voice?

While active voice is generally preferred for clarity and directness, passive voice is useful in certain situations:

• When the doer of the action is unknown or unimportant (e.g., "The window was broken.").
• When you want to emphasize the action itself or the object receiving the action rather than the doer (e.g., "The new policy was announced today.").
• In formal or scientific writing, where objectivity is desired (e.g., "The experiment was conducted at room temperature.").

In the given sentence, converting to passive voice shifts the focus from 'the plumber' to 'the leakage', highlighting that the leakage remains unfixed.