Addition
in addition
and similarly
likewise as well as
besides further more
also moreover
and then too
not only … but even
besides

Sequence
first(ly) initially
second(ly) etc.to begin with then
next earlier/later
after this/that
following this/that

Consequence
as a result
thus
so
therefore
consequently
it follows that
thereby
eventually
then in that case
admittedly

Contrast
however
on the other hand
despite
in spite of
though
although
but
on the contrary
otherwise
yet instead of
rather
whereas
nonetheless
even though
compared with
in contrast
alternatively