Question

how are you taught grammar change the voice ​

Answer 1

Explanation:

Nobody. Grammar is something native speakers pick up by reading and listening. When I was asked how to change a sentence to passive voice, I paid attention to how I do it and figured it out.

ADDENDUM: Native speakers learn how to use grammar by reading and listening. We don’t learn how to explain it until we learn in school how to describe what we’re already doing. Once we know the names of things we can talk and write about them.