Active Voice in Past Indefinite Tense:
Past indefinite active voice sentence is a construction in which the subject carries out an action in the past, focusing on the doer of action and the specific past time of the action.
Simple past tense in passive voice is a grammatical structure where the subject of a sentence receives an action that occurred in the past, sometimes without specifying who or what performed the action. In passive voice, the emphasis is on what happened rather than who did it.
Example
Active Voice: She wrote a letter.
Passive Voice: A letter was written by her.
In the passive voice sentence, “A letter” is the subject, “was written” is the passive verb phrase, and “by her” is the optional agent (the doer of the action).