Human dignity must be preserved at all cost by us.
or

Human dignity must be preserved at all cost

Preserving Human Dignity: From Active to Passive Voice

Introduction:
Preserving human dignity is a fundamental principle that should be upheld at all times. When transforming the active voice sentence "We must preserve human dignity at all costs" into the passive voice, certain changes need to be made to the sentence structure. This transformation is essential in order to emphasize the importance of preserving human dignity and to convey the message effectively.

Explanation:
To convert the given active voice sentence into passive voice, the following steps can be followed:

Step 1: Identify the Subject and the Object
In the given sentence, "We" is the subject, and "human dignity" is the object.

Step 2: Move the Object to the Subject Position
To transform the sentence into passive voice, the object "human dignity" should be moved to the subject position. This will emphasize the importance of preserving human dignity.

Step 3: Change the Verb to Passive Voice
The verb "must preserve" needs to be changed to passive voice, which is formed by using a form of the verb "to be" followed by the past participle of the main verb. In this case, the past participle of "preserve" is "preserved."

Step 4: Add the Agent (Optional)
In passive voice constructions, the agent (the doer of the action) can be included using the preposition "by." However, in this case, the agent is not specified in the original sentence, so it is not necessary to include it.

Revised Sentence:
Human dignity must be preserved at all costs.

Conclusion:
Preserving human dignity is of utmost importance. By transforming the active voice sentence "We must preserve human dignity at all costs" into the passive voice, the revised sentence "Human dignity must be preserved at all costs" places emphasis on the significance of maintaining human dignity. This transformation helps to draw attention to the subject of the sentence and highlights the essential nature of preserving human dignity in all circumstances.