Transitional Words  SHOWING RELATIONSHIPS  WITHIN AND BETWEEN SENTENCES                         
To indicate  sequence:
after / after  that  
and / and then
at this point / at this time
before
concurrently
finally
first of all
firstly, secondly, thirdly
followed by
last / lastly
meanwhile
next
previously
simultaneously
subsequently
the first I second I third reason
To introduce an additional idea:
a different
a new
also
an added
an additional / additionally
an extra
and then
another
as well as
besides
equally important
finally
further
furthermore
in addition
likewise
moreover
one can also say
one more
what's more
To indicate time:
after / afterwards
after awhile / afterward
as long as
as often as / as soon as
at length
at that time
at this point in time / before
currently / during / erratically finally / formerly
frequently / infrequently immediately / in a while
in the interim / meantime
in the same period infrequently
initially
later / later on / meanwhile never
now / right now / presently previously
prior to
recently / seldom / shortly since
soon / soon after
subsequently
then
thereafter / until
when / whenever / while



To give an example:
case in point
for example
for instance
in this case / way
lay bare
living proof
on this occasion
take the case of
this can be seen
to demonstrate
to display
to illustrate
to reveal
to show
when
where
To introduce an opposite idea:
an alternative
but
conversely
despite
even though
however
in contrast
nevertheless
nonetheless
nor can you ignore
on the other hand
one could also say/add
still
then again
though
where
whereas
while
yet
To show subtraction:
after all
against / almost / although
although / this may be true /    at the same time / barely
but
by groups /
different from / either ... or / even though /for all that / hardly / however 
however in / contract to individually
instead / instead of it / is true
just
less than / neither ... nor nevertheless 
not notwithstanding /
on the contrary /
on the other hand
or / other /
other than /
otherwise / practically separately / still
with the exception /
yet /
and yet



 

To compare:
alike  
as seen/shown/discussed
balanced against
both
by comparison  
equally
evaluate
in a different sense / way
like / likewise
match
one and the same
put side by side
same /
in the same way /
similar to / similarly
weigh against
whereas
To show emphasis:
according to
as much as possible
essentially
extremely
ideally
in any event
in fact
in reality
indeed
must
officially
practically
primarily / primary
significantly
technically
that is
theoretically
to be sure / certain
undoubtedly
To show result:
a number of / accordingly / as a result
as determined by /
because of / completely / consequently / hence 
in part  / partially / satisfactorily 
so that / then /
thereby / therefore / thereupon / thus
To show place:
adjacent to / at first /
at the beginning / beyond
finally /
first, second, third / here
in relation to / in the end /  nearby / neighbouring
on the opposite side /
on the same side /
opposite to/           
over
pre- / post-there /              under /  where



To contrast:
a different view is
a variation
balanced against
contrasting views
conversely
differing from
discrepancy
disparity
dissimilarity
distinction
however
in contrast
on the contrary
on the other hand
unlike
To summarize or conclude:
accordingly
and so
as a result
as shown
consequently
finally
for this / that reason
hence
in brief / short
in conclusion
in other words
in summary
in view of that
on the whole
summing up
therefore
thus
to conclude
to summarize /
sum up/
ultimately
To show purpose:
another reason / because
for / for this purpose / 
in order that /
in response to/
so that /
to this end /
with this object
To show frequency
a percentage / all
alternately / always / commonly / constantly / each / every / few / fewer / frequently infrequently / many
more / most / never / often
one or two / only
rarely / several / some throughout / usually
To show coincidence:
at the same time / place / during /
equally important /
in the meantime /
in the period / in the same period / incidentally /
meanwhile