This is the chord progression of Weak by Michael Pangilinan on Piano, Ukulele, Guitar and Keyboard.

[Intro]
Gm Cm Fm7 Bb7 Ab

[Verse]
Gm7                                                Abm
I don\’t know what it is that you\’ve done to me
Gm7                                           Abm
But it\’s caused me to act in such a crazy way
Gm7                                                                       Abm
Whatever it is that you do when you do what you\’re doing
Gm7                             Abm
It\’s a feeling that I want to stay

[Pre Chorus]
Bbm                                                         Eb
Cause my heart starts beating triple time
Abm                                           Ebm9
With thoughts of loving you on my mind
Bbm                                           Eb
I can\’t figure out just what to do
Abm               Gm7               Bb
When the cause and cure is you

[Chorus]
Gm7                                           Cm7
I get so weak in the knees, I can hardly speak
Fm7               Bbm7               Abm               Gm7
I lose all control and something takes over me
Cm7
In a daze and it\’s so amazing
Fm7           Bbm7               Abm               Gm7
It\’s not a phase, I want you to stay with me
Cm7
By my side, I swallow my pride
Fm7
Your love is so sweet
Dm7               Gm7               Cm7
It knocks me right off of my feet
Abm               Gm7         Fm7         Bb               Eb
Can\’t explain why your loving makes me weak

[Verse]
Gm7                                           Abm
Time after time, after time I try to fight it
Gm7                                                         Abm
But your love is strong, it keeps on holding on
Gm7                                                         Abm
Resistance is down, when you\’re around, starts fading
Gm7                                           Abm
In my condition, I don\’t want to be alone

[Pre-Chorus]
Bbm                                                         Eb
Cause my heart starts beating triple time
Abm                                           Ebm9
With thoughts of loving you on my mind
Bbm                                           Eb
I can\’t figure out just what to do
Abm               Gm7               Bb
When the cause and cure is you

[Chorus]
Gm7                                                         Cm7
I get so weak in the knees, I can hardly speak
Fm7               Bbm7         Abm               Gm7
I lose all control and something takes over me
Cm7
In a daze and it\’s so amazing
Fm7               Bbm7               Abm               Gm7
It\’s not a phase, I want you to stay with me
Cm7
By my side, I swallow my pride
Fm7
Your love is so sweet
Dm7               Gm7               Cm7
It knocks me right off of my feet

[Outro]
Abm Gm7 Fm7 Bb DbM7 Eb Db Eb
Can\’t explain why your loving makes me weak
Abm Gm7 Abm Bb C
Can\’t explain why your loving makes me weak