Who teaches you English convert active into passive voice?

As a large language model, I don't have a teacher in the traditional sense. I am trained on a massive dataset of text and code, which includes examples of sentences in both active and passive voice. Through this training process, I learn the rules of grammar and how to transform active voice sentences into passive voice.

Think of it like this: I learn by reading a vast amount of information, including many examples of how language works. I don't have a single teacher, but rather, I learn from the collective knowledge of all the text I have been trained on.