SHOWING ADDITION:
and
also
in addition
besides that
frthermore
moreover
another reason
what is more
not only that
on top of that
more than that

SHOWING RESULT
so
consequently
then
therefore
at a result
for this/that reason
thus
accordingly
because
in view of the fact that
because of
since
in light of

SHOWING OPPOSITION
but
on the contrary
yet
however
nevertheless
on the other hand
for all that
in contrast
otherwise
although
while
instead of
rather than
in place of

SHOWING EXAMPLES
for example
for instance
such as
one example of this is
as an illustration
take the case of