[Verse 1]
D             D/G
  No, this is not goodbye
D                   Gm
  I swear that I'm gonna change
D           D/G
  No, baby, please don't cry
D                    A         A#dim
  It doesn't have to end this way
[Pre-Chorus 1]
       Bm               A                  G                                    
'Cause when I think of all the nights I'll be alone
G  D/F#       Em                      Em
        I get terrified, please don't say goodbye
[Chorus 1]
N.C.                D/F#       G
'Cause girl, if you leave me now
               D           D/F#         G   A  A#dim
If you give it up and just walk right out
         Bm               F#/A#
You will take the biggest part of me
    D/A                 Em7
And all the things that I believe
G                     D
Baby, if you leave me now (yeah)
[Verse 2]
D             D/G
  When did we lose our way?
D                      Gm
  My whole world was unravelling
D                   D/G
  And girls driving me insane
D                         A              A#dim
  There's no road for the travelling, oh whoa-whoa, woo-woo
[Pre-Chorus 2]
Bm            A                G
When I think about all of the nights you're gone (nights you're gone)
G  D/F#       Em                                        Em
        I get terrified (I get terrified), please don't say goodbye
[Chorus 2]
https://www.coveralia.com/acordes/if-you-leave-me-now--feat--boyz-ii-men--charlie-puth.php
N.C.                D/F#       G
'Cause girl, if you leave me now
               D           D/F#         G   A  A#dim
If you give it up and just walk right out
         Bm               F#/A#
You will take the biggest part of me
    D/A                 Em7
And all the things that I believe
G                     D
Baby, if you leave me now
    G                     D
Oh, baby, if you leave me now
[Bridge]
F#                         Bm
   Oh, I can promise if we parted (parted)
F#                          Bm
   And if you left me brokenhearted (ha-ah-ah, ah-ah ah-ah-ah)
F#                          D/A                  B
   Every single night, I'll think about you with someone else
Em    D/F#   G
Baby, if you leave me
[Chorus 3]
E     F#      G        E
Baby, if you leave me now (leave me now), oh 
Esus4                E            Esus4      A   B  Cdim7 
      If you give it up and just walk right out
         C#m              G#/C
You will take the biggest part of me
    B                   F#
And all the things that I believe
A                     E
Baby if you leave me now
   E
Oh girl, if you leave me now
Esus4                E            Esus4      A                         B  Cdim7
      If you give it up and just walk right out (walk right out, baby)
         C#m              G#/C
You will take the biggest part of me
    B                   F#
And all the things that I believe
A                     E
Baby if you leave me now
    A                      E
Oh, baby, if you leave me now