[HipHopAnonymous]

This is a very interesting thread. I spent a decent amount of time reading conversations about the rules of the English language, and how to use particular words properly. I decided I would throw in my 2 cents, which may help some of those trying to get better at using the English language in a conversational manner.
The RULES you learn about English in text books are very important and teach you how to structure sentences properly. What may be very little known about the English language, is that it's so versatile and bendable; allowing you to structure sentences in almost any order you please. This is done by the EMPHASIS on particular words and TONE OF VOICE when you are speaking. Much can be achieved in speaking English by properly emphasizing particular words to relay your message, and attitude towards someone.
Here are some examples; (words in bold are the words being emphasized using my tone of voice.)

A: "DID you go to the store?"
-With the word "did" emphasized, you imply an accusatory or suspicious feeling with a particular meaning. Restructured in the English speaker's mind it would read.- "Did you go to the store, or are you lying to me?"

B: "Did YOU go to the store?"
-With the word"you" emphasized, you imply that you were unaware that the person you are speaking to, was the person you expected to go to the store. Meaning there is a third person involved in this situation. In the English speaker's mind this may be translated as. -"I didn't expect you to be the one to go to the store."

C: "Did you go to the STORE?"
-With the word "store" emphasized, you imply that you are in some way surprised that the listener went to the store. Maybe you told him/her not to, and he/she did anyway. Perhaps you are upset that this person went to the store without you because he/she knew it was your favorite store. In the English speaker's mind, this sentence may translate as. -"How could you go to the store without me? you know it's my favorite store." or even "You went to the store and you know you were not supposed to go there."

Anyways, there are endless examples of this type of thing in English and I feel is very key to understanding how to speak it. When it comes to writing, or typing in English. Emphasis on your words and sentences are created by punctiation, such as commas, Periods, Exclaimation points, question marks. Based on your punctuation, the English speaker will read your sentence in their head, assuming emphasis on certain words. This can have a great affect on how your message is precieved by the reader.
All in all, it is not uncommon for an English speaker to mis-interperet what someone is saying, when they are writing informally. This is based on two things. Informal writing contains little to no punctuation and is therefore harder for the reader to understand what is being said, because the EMPHASIS on words and sentences is not apparent.
Sorry if this is confusing for some members that posess English as a second language. I'm glad to clear things up for you. Sorry if this is off-topic as well but I felt it appropriate. :-) good day!