At first you think it's fine. The you actually start understanding it, next comes writing and reading stuff in broken English. The last stage is when your talking to someone and acidentally say "I is also going library "
My brain strangely adjusted to the MTL English. I totally get what OP means by understanding alien language lol. I see the gibberish and my mind translates it to the actual meaning. I've read and sampled around 50 novels already.