Some key phrases that act as structures and are commonly used in English.

Level 1

also
should
so
of course…
x is about y
need to
in total
the next…/the last…
such as…
because of this…
therefore
so that
…is best
absolutely / totally / completely
had better
do x (for n.) / do x (to v)
a mix of x and y
yet
although
generally

Level 2

especially
for instance
in fact,…
that said,…
it gets (adj.) and (adj.)
whilst
…, in which…
not only…, but also…
instead of…
‘Speaking of…’
the…er the better
unless…
some(one/where/thing/time/place) else
amongst (group), ….
x is increasingly y
on the other hand
no matter whether
as well as…
apart from… / except for…
…, which leads to…

Level 3

In short,…
don’t…at all
in comparison
at best…, at worst…
…the hell…
not remotely like…
nonetheless
whereas
so (adj.) x could (v.)
all things considered
as it happens / happened,…
if…, maybe x should…
bear in mind
in order to…
in particular / particularly
if you…, x will…in return
over the course of…
far less…, if …at all
…rather than…
since (x is true), (do y)

Level 4

on the whole
thus
on top of this,…
the aforementioned
It goes without saying…
if so / if not
otherwise
…with this in mind…
what is more
depending on (whether)
Initially…, but…
it’s not…, but unless (you want)…
no matter how…
alternatively
x is synonymous with y
when it comes to x, (y is true)
short of…
which doesn’t…until…
consequently
regardless of…

Level 5

on the matter/subject of…, …
likewise
according to
without a doubt…
from…, through…, to…
…tends to…
it could be argued…
in other words…
it’s not that…;it’s just that…
basically,…
…, the former/latter of which…
not for another (time)
…,let alone… / …,much less… / …,never mind…
thus far
in contrast to this,…
x stems from y
after all, …
…as if…
in regards to…
such a…(can/will/would/might)

Level 6

‘Anyway,…’
to illustrate
hence
above all
it’s bad enough…, but…
it follows that
as can be seen by
‘I would have thought…’
either way
correspondingly
if that is the case
may as well
…Granted,…
In light of…
conversely,…
not withstanding that…
irrespective of…
in essence
x alone (will not achieve y)
parallel to this

Different ways to…

give examples