Subordinating conjunctions

Cause or  Effect	Concession	Condition	Comparison  or Contrast	Purpose	Space or Time
as  because  since	though  although  even though  even if	if  since  unless  when  whenever	while  as  rather than	in order that  so that	before  since  once  after  while  when  until

Adverbial conjunctions

Addition	Emphasis	Comparison or Contrast	Cause or Effect	Time
in addition furthermore moreover further	in fact indeed	however nevertheless nonetheless otherwise in contrast in comparison	as a result consequently hence therefore thus	finally meanwhile next

PREPOSITIONS

about along behind beyond during inside off over to up

above among below but except into on since toward upon

across around beneath by for like onto through under with

after at beside despite from near out throughout underneath within

against before between down in of outside till until without