As a native speaker of english, i guess i've got two distinct advantages, maybe three. One is that i can just sort of like go into my head and just pick out, like, what is right and wrong, just by instinct, exactly. E, the other thing is your knowledge of certain systems and situations, like academ academic English. And i guess the third thing is maybe being a model of pronunciation. That a bit like having that inbuilt knowledge of grammar and vocab. Your pronunciation just sort of becomes a model, and you can just, you know, just by speaking it, peopleanan can copy it.