oh haha jk you speak english nevermind the question :>

Oh, and if I were to use the word rubbish. I would use a phrase like "what rubbish!" or " what a load of rubbish!" meaning 'what nonsense' or that it has no meaning or relivance or is just plainly obserd.

To be honest I didn't even know autumn and fall were the same thing. So, I would say that it doesn't really matter with that one. Though, if you were to use autumn in a sentence rather than fall in just the average day conversation, it would sound slightly more formal to my ears, but just slightly. Now with trousers and rubbish that is more of a British thing. When I hear the word trousers I do get a differant image, rather than just thinking about pants I see overalls, which are strange to most. I think most people know the word trousers, but I would, and I think most would instantly think foreigner or at least british foreigner. If you are a darker skin colour you would probablly be asked where you were from. Just because it is a different word, British word, there would be some mixed signals. Though if a friend of mine used the word every once and a while, I would quickly grow used to it. I hope it didn't sound as though I gave the word "foreign" a negitive nuance. Because that absolutly is not the case, all America is basically is a bunch of foreiger/emigrants. So to be honest I really don't think most people are really all that aware of small differences. I would say most are pretty relaxed about that stuff, don't care, or are going to be excited to meet someone foreign. Rubbish, is virtually never used, the only times I have ever heard it is from british people on tv. Just out of curiosity how long have you been studying Enlish? Because from what I can see you appear to be fluent at least in writing. I mean, I grew up here went to school and still have problems with writing.

I don't understand what the conjugation does.

eat

oh, and can で　be an emphasis of "am" or "is".