Its the same as ever.
the same asが万能

△) we expect it will work as same as its working.
○) we expect it will work the same as its working.
○) we expect it will work ,same as its working.
as same as は避けるべき、asがsameのニュアンスがあるので重複を感じるらしい
the sameで副詞としてもつかえるし

ひと昔前はthe reason why という言い方も重複を感じるから文法的に問題とされたが今は使う人もいる（特に先頭の場合）しかし避けた方がいい
△) The reason why it failed was that it had no right.

こっちのほうがいい
○) Thats why I go to school.
○) Thats the reason I go to school for.

the place where, the time when, the way howも重複しているので避けるべき

△) This is the only way how this company penetrate into this new market.
○) This is the only way this company penetrate into this new market.

副詞節の接続詞と主語が省略される

■省略されている接続詞は4パターン
１）時を表す接続詞：「…する時」という意味の when 、「…する後」という意味の after、「…する前」という意味の before
Seeing the drawings, I recalled my childhood. (＝When I saw)

２）理由を表す接続詞：「…なので」という意味の as
(Being)Tired, I went to bed at the time.(＝As I was tired)
(Being)Written in easy English, the book will be read by many people.(＝As the book is written)

３）条件を表す接続詞：「もし…ならば」という意味の if
Turning to the left at the corner, you will find the building.(＝If you turn)
The same thing, happening (＝if it should happen) in my city, would go crazy.

４）譲歩を表す接続詞：「…だけれども」という意味の though
Accepting your feedback, I still think you cannot express enough.(＝Although I accept)
Living near my neighbor, he seldom comes to see me.(＝Though he lives)

---

５）結果を表す接続詞：「…そして」という意味の and
The storm hit the area, causing (＝and it caused) great damage.
Foreigners are active in the Japanese stock market, owning (＝and they own) more than 20 percent of the shares.

６）付帯状況：「 ～しながら」
Smiling brightly, he extended his hand to me.
A jet flew up into the air, making a great noise.

７）独立分詞構文
分詞の意味上の主語が主節の主語と異なる場合、それは省略されない
My bag stolen, I couldn't go there.
It being fine tomorrow, I will go hiking.

８）接続詞を残すパターン
分詞構文の意味を鮮明にするために、分詞の前に接続詞を置くこともある
Though living next door, I seldom see him.(＝Though I live)
While having lunch, we used to talk about sports.(＝While we were having)

■構成
As I was hit by him, I was very angry.
↓　分詞構文（副詞節の接続詞と主語が省略）
Being hit by him, I was very angry.
↓　受動態beingの省略された形の分詞構文
Hit by him, I was very angry.

■Having PP
主文の時制より過去を表す
Having failed several times on it, he succeeded finally. (＝After he had failed)