> I’m also aware of my grammar not being perfect. As a native English speaker is this funny since English grammar is a bit fluid. > Knowing which preposition

> I’m also aware of my grammar not being perfect. As a native English speaker is this funny since English grammar is a bit fluid. > Knowing which preposition to use is sometimes challenging. True that. Also adjective order. My suggestion is read and watch popular English fiction. I say that because I'm dubious that your English is technically deficient. More likely has to do with the intersection of culture and language. As in when and how to shift from formal to informal depending on situation. Also remember the English speaking world itself is fragmented. For instance I can often tell where someone grew up in the Bay Area by their speaking style.