To me it seems like 'know about' is used in every situation and the use of 'know of' is mostly limited to 'not that I know of' expression. Short google search seems to support my point of …

Feb 23, 2015 · In dialog, you would usually say "I know that" as a simple statement. "I know" would be accompanied either by a gesture such as holding up your hand with the palm toward …

Oct 18, 2016 · I think 'did you know' is used to represent past facts. Eg:'Did you know that some dinosaurs’ tails were over 45 feet long?',whereas "Do you know' is used to represent …

Sep 25, 2010 · "I know that it is true" becomes "I know it is true." I simply omit the word "that" and it still works. "That that is true" becomes "That which is true" or simply, "The truth." I do this not …

Oct 18, 2012 · I am used to saying "I am in India.". But somewhere I saw it said "I am at Puri (Oriisa)". I would like to know the differences between "in" and "at" in the above two sentences.

Jan 5, 2012 · I am a non-native speaker of English. When communicating with a professor, would it be better to use could you kindly send me the document or could you please send me the …

Oct 14, 2011 · We also know there are known unknowns; that is to say we know there are some things we do not know. But there are also unknown unknowns – the ones we don't know we …

May 9, 2012 · I might say the first sentence if I know what time it is but do not know where we are (as is generally the case when I'm on a train). The second is more of a complaint about how …

Although "who knows" is almost as an expression for giving sense however, expressions can be statements, orders, and questions, so does the expression: "who knows" need a question mark?

Feb 19, 2015 · I know information does not have a plural form (syntaxically talking), which leads me to the following problem: The username and password are missing. I need [this/those] …