SOMEBODY definition: some person. See examples of somebody used in a sentence.
X is also used to stand for cross; e.g., LX = lacrosse. There is no special word for abbreviations or initializations ending in X or any other letter AFAIK. It's all part of an inclination to shorten, to leave out what is already known--e.g., here, the OP, ELL. Note that in entertainment FX (not Fax) stands for effects, as in special effects.
Recently one of my friends told me that there is distinct difference between 'know of something' and 'know about something' expressions. 'know of' is used when you have personal experience with wha...
The string I don't know that is grammatical and common and is used to express doubt. The use of subordinators if or whether after know would suggest a less firm position: he doesn't know or he's not so certain. I don't know that there are bargains yet, but there certainly are opportunities. I don't know that the President has said that he fully supports the conference of the states I don't ...
My question is about similar (for me) question forms "don't I know you" and "do I know you". Is there any difference between them or can they both be used in the same context without any exceptions?
Possibly, "I do know that" can in fact only be used, when, you are answering the question of whether or not you know the issue at hand (or your knowledge has been called in to question, and you are answering that challenge). Let's say "out of the blue" you wanted to state that "you know that" -- and you wanted an emphatic version.