Hello there! As a language expert with a keen interest in grammar and sentence structure, I'm delighted to help you understand how to transform an active-voice sentence into a passive one. The passive voice is a versatile tool that can shift the focus of a sentence from the doer of the action to the receiver of the action. Here's a step-by-step guide on how to achieve this:

### Step 1: Identify the Subject, Verb, and Object in the Active Sentence

The first step in converting an active sentence to passive is to clearly identify the subject, verb, and object. In an active sentence, the subject performs the action expressed by the verb, and the object receives the action.

Example Active Sentence:
> The cat chased the mouse.

Here, "The cat" is the subject, "chased" is the verb, and "the mouse" is the object.

### Step 2: Determine if Passive Voice is Appropriate

Not every sentence needs to be in passive voice. The active voice is often more direct and engaging, while the passive voice can be more formal or used when the doer of the action is unknown or less important.

### Step 3: Rearrange the Sentence Structure

To form a passive sentence, you'll need to rearrange the sentence components. The object of the active sentence becomes the subject of the passive sentence, and the subject becomes the agent of the action, introduced by the phrase "by the."

Example Passive Sentence:
> The mouse was chased by the cat.

### Step 4: Change the Verb to the Passive Form

The passive form of a verb is created by using a form of the verb "to be" followed by the past participle of the main verb. In our example, "chased" is the past participle of "chase," and "was" is the past form of "to be" that agrees with the singular subject "mouse."

### Step 5: Consider the Agent

The agent of the action, which was the subject in the active voice, can be included in the passive sentence with a "by" phrase. However, it's not always necessary to include the agent, especially if it's unknown or irrelevant.

Example Without Agent:
> The mouse was chased.

### Step 6: Adjust Tenses

When converting sentences with different tenses, ensure that the form of "to be" and the past participle match the tense of the original sentence.

Example in Present Perfect Tense:
> The cat has been chasing the mouse.

Passive Version:
> The mouse has been chased by the cat.

### Step 7: Practice and Refine

The more you practice converting sentences from active to passive voice, the more comfortable you'll become with identifying the components and adjusting the structure. It's also important to refine your sentences to ensure they sound natural and maintain their original meaning.

### Conclusion

Converting sentences from active to passive voice can be a powerful way to emphasize different parts of a sentence or to maintain a formal tone. By following these steps and practicing regularly, you can master the art of using passive voice effectively.

Now, let's move on to translating this explanation into Chinese.

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If you want to change an active-voice sentence to passive voice, consider carefully who or what is performing the action expressed in the verb, and then make that agent the object of a by the...phrase. Make what is acted upon the subject of the sentence, and change the verb to a form of be + past participle.Feb 14, 2018read more >>