Its my first time posting here ^^ though I'm not totally sure about the chords but I did 
my best to figure it out.

here it is..

Time Machine by Girls' Generation

Tuning: Standard

INTRO:C#m Ab Eb Bb

Verse: C#m Ab Eb Bb (x4)

Itsumo yori sukoshi hiroi heya tadahitori
It’s over, guess it’s over
Futari de tsukuri ageta sutōrī mo munashiku
Kon'nani kantan ni kuzure teshimau nante
One mistake, got a one regret
“Dare mo kanpeki janai” tte
Sō iikikasete mite mo
Nani o shite mo kizu wa iyasenakute

Chorus:
Eb                            Bb
Ima taimumashīn ni norikonde
         C#m
Anata ni ai ni iku]
          Ab
Koto ga dekitanara
         Eb                  Bb
Mō nani mo negawanai
 C#m               Bb-Ab
Hakanakute tōi kioku ni naru mae ni…
Eb                    Bb
I need a time machine oh
C#m                   Ab
I need a time machine oh

Verse: C#m Ab Eb Bb (x3)
Hitori de sugosu jikan wa oso sugite
Ayamachi no batsu wa amarini mo omoku
Anata ga saigo ni nokoshita words
Ima demo zutto rifurein tomaranai
Mada munegaitamu

Just one mistake, just one regret
Wagamama mo ima wa itoshikute

(repeat chorus)
Ima taimumashīn ni norikonde
Anata ni ai ni iku
Koto ga dekitanara
Mō nani mo negawanai
Hakanakute tōi kioku ni naru mae ni…
I need a time machine

C#m          Bb             C#m
Jikū tobikoete anata ni aetara
Bb-Ab       C#m
Tatoe onaji
              Bb
Ketsumatsu mukaeta to shite mo kitto
C#m (a little bit longer)    A#-G#