I. Detailed Explanation of Verb Voice
Voice is a form of a verb that indicates the relationship between the subject and the predicate verb in a sentence.
English has two voices: the active voice and the passive voice. The active voice indicates that the subject is the doer of the action expressed by the predicate verb, while the passive voice indicates that the subject is the receiver of the action expressed by the predicate verb. For example:
1. I have repaired the radio.
I have fixed the radio.
2. The radio has been repaired.
The radio has been fixed.