Question

A mistake has been made by him change active voice

Answer 1

Active voice: He made a mistake.

What is active and passive voice?

• In English grammar, there are two types of voices

1. Active voice  
2. Passive voice

• In active voice, the subject directly performs the action and it acts upon the verb.
• While in passive voice, the position of the subject and object changes, and action is performed on the object.
• The subject becomes the recipient of the action performed by the verb.