I totally understand what you are asking and the answer is that, around here at least, we walk in, not into (even though "into" is proper) and we sit but don't generally "sit down" (even though "sit down" is proper, too.) There is nothing wrong with "into" or "sit down" - they are correct and proper - but they are not used in the way they are used in some examples here. However, as I think about it more, the written form is more formal than spoken. The examples given here seem conversational, mostly, so "in" seems like a better translation. But, if I were writing to tell someone I was going inside, then I would probably write "into". Until now, I had no idea how pedantic I could be and it is not my best character trait!
Thanks for increasing my very limited knowledge of colloquial New England English! :)
To be honest, it doesn't sound like it should be accepted here - especially considering our many users who learn English as well. But please don't take that to mean you're speaking incorrectly.
LOL well, it is not really that colloquial! What I wrote is correct but this is your course, not mine. I just get to enjoy it and if there are some quirks then no big deal. I wanted to learn swedish and you are helping me make real progress - without you I don't think I would have learned anything. I understand, I think, the meanings in Swedish and if it doesn't translate into English perfectly sometimes...it doesn't matter: I already know English (or what passes for English in America!)