Who taught you English grammar change into passive voice?

As a large language model, I don't have teachers in the traditional sense. I was trained on a massive dataset of text and code, which included examples of English grammar. Through this training, I learned to identify patterns and rules in language.

So, in a way, you could say that the massive dataset of text and code "taught" me English grammar.

However, it's important to note that I don't have the same understanding of language as a human. I can identify patterns and apply rules, but I don't have the same level of intuition or understanding of the nuances of language.