conjunction

Co-ordinating conjunctions :
and
but
nor
for
so
yet

Subordinating conjunctions :
after
although
as
as if
as long as
as much as
as soon as
as though
because
before
even if
even though
how
if
if only
in case that
in order that
no matter how
now that
once
provided (that)
rather than
since
so that
than
that
though
till
unless
until
whatever
when
whenever
where
wherever
whether
while

Correlative conjunctions :
as ... as
both ... and
either ... or
neither ... nor
not only ... but also
so ... as
whether ... or

Other conjunctions :
whence
whensoever
whereas
whereat
whereby
wherefrom
wherein
whereof
whereon
wheresoever
whereto
whereupon
wherewith