marc bolan used the same chord progressioon for a lot 
of songs. that being C, Am, F, G.

so the chord progression for the verse is:

C, Am, F, G.

On the "oh no" chorus deal. the progression is:

C, F, C, G.     a few times toward the end of the song 
i think it probably goes ( C, F,
C, Am) during the chorus.