Hey eliot and Yuko!
I said that I was not sure about "cleared up"
BUT: it's not true that were you use the word "however" depends on your mood of speaking...that may go for speaking but if you write an essay it's important to know were and when to use the word however..!!
HOWEVER functions as an adverb to connect ideas BETWEEN sentences. The type of connection can be: comparing or contrasting.
It can also connect two clauses in one sentence when they are joined with AND, BUT,SO, a semi-colon (;), colon (:) or dash (-):
e.g.: You could fly via Berlin; however, this isn't the only way.
But : however can also be used to connect ideas WITHIN a sentence:
- when it is followed by an adjective, adverb or much/many:
We just don't have the money to work,HOWEVER NECESSARY think it is.
- when it means "no matter how":
HOWEVER, she held the mirror, she couldn't see the back of her neck.
so eliot is right concerning the aspect of speaking and that a native speaker uses this word depending on his/her mood but not concerning the aspect of writing and connecting ideas BETWEEN OR WITHIN sentences!! you should be aware of the grammar when writing an essay and then you cannot rely on colloquial English. *Patty*