（１）列挙
There are two reasons for this.
First / Second / Third / Last
Firstly / Secondly
At first / then
one ~ is that →another ~ is that / the other ~ is that（事前に２つと特定していたら→the other、特定していなかったら→another）
also / in addition
moreover / besides / in addition：加えて
（２）例示
For example, S V.：例を文で挙げるとき
名詞 such as 名詞：例を名詞で挙げるとき
Considering~ / Regarding~：～を考えてみると
I once read in the newspaper that～：私は以前～と新聞で読んだ。
In my case
When I was~
I remember Ving
（３）譲歩
A→but / however→B
A（反対意見や一般論）：Certainly , / It is true that / Some people may say that / many people say that / It is said that
B（Aへの反論）：I think / this does not necessarily mean / there would arise another problem / they would go through more difficulties than they do now / another problem comes to the surface
※その他の譲歩の形
though
even if
Despite the fact that
just because SV, it does not mean
（４）対比
while
……instead of～ / ……rather than～：～ではなく……
what S be、what S used to be、what S have been,、what S will be：現在のS、かつてのS、今までのS、これからのS
Now that～：今や～なので
in the past：過去において
現状を言うときは現在完了
（５）原因と結果
It’s because / The reason is that / , which is because
result in～：～という結果となる
end up ~ing：結局～になる
lead A to B：AをBに導く
cause A B / cause B to A / cause O to do
This is why：これゆえ～