"Combined words to make relationship between two clauses / sentences"
Some conjunctions combine with other words to form what are called correlative conjunctions. They always travel in pairs, joining various sentence elements that should be treated as grammatically equal.
Common Correlative Conjunctions are:
Both...and
Not only...but also
Not...but
Either...or
Neither...nor
Whether...or
as...as
USES OF Correlative Conjunctions
BOTH...AND
'Both...and' used for emphasizing that each of two things is true.
Examples
Both she and her sister now live in New Zealand.
Coffee plant that grows in both Kashmir and Simla.
NOT ONLY...BUT ALSO
'Not only...but also' used to show an additional and important element in the sentence that is used to indicate excess when combined with the first element.
Examples
The explosion destroyed not only the school but also the neighboring hospital.
Not only does he play the lead guitar but he is also the band’s songwriter.
NOT...BUT
'Not...but' used to show an additional and important element in the sentence that is used to indicate excess when combined with the first element.
Examples
It was not just a big Lion, but dangerous one as well.
Not alone did he win the race, but he also beat the record.
EITHER...OR
'Either...or' used for saying that one of two things has to happen or be true.
Examples
Either you come with us, or you stay at home.
Either he forgot about the meeting or he stayed away.
NEITHER...NOR
'Neither...nor' used for negative expressions:
Examples
He is neither sane nor brilliant.
That is neither what I said nor what I meant.
WHETHER...OR
'Whether...or' used for saying that you cannot change a situation even if it is unpleasant.
Examples
Whether you agree or not, this purse belongs to me.
Whether we like it or not, we are part of a global economy.
AS...AS
'As...as" used to comparing two things.
Examples
I'm almost as good in math as in science.
I think that I am not as confused about it as you are.
