I am always confusing about when to use amount and when to use number.
Are there any specific rules for "amount" and "number"?
More examples the better, thx~
Also, one more, something like "as being XXX", "having been XXX", is it always awkward? What is the most appropriate situation for those weird expression?
Just remember this:
Eg: 'the amount of sugar', 'the number of phone calls'.
as being vs. having been.
Both are passive ways of writing sentences.
Nina, being a good observer, picked it up at once. -> This is in the present. It says that Nina is a good observer.
Nina, having been a good observer, picked it up at once. -> This signifies that Nina has been a good observer from somewhere in the past up till now. This refers to a time interval and hence, this form, the 'present continuous passive' is used.
Hope it was clear.