Hey this is the basic bass line for not enough
except for a few changes in rythem (listen to song for changes in rythem)


g|————————————————————————|
d|————————————————————————|
a|—4——4——0——0————————2——2—|
e|—————————————0——0———————|


for the part that repeats "not enough not enough not enough i'm sorry" it's just
c# over and over (or a string 4th. fret) just play the same rythem duncan plays.


Try playing this every once and a while

g|———————————————————————————————————————————————————|
d|——————————————————4—1——————————————————————————4—1—|
a|—4——4—2—0——0——————————2——2—3—4——4—2—0——0———————————|
e|—————————————0——0—————————————————————————0——0—————|


well that's pretty much it pretty easy, not shure if it's right but it's sound right by 
the cd.