Intro: The riff has 2 minor variatons 
e|---------------------------------------------------| 
B|--------2------------------2-----------------------| 
G|------0---0--------------0---0---------------------| 
D|----4-------4----------4-------4-------------------| 
A|--2------------------0-----------------------------| 
E|---------------------------------------------------| 
Verse: 
Who can this be knocking at my door 
Go away, don't come round here no more 
Can't you see that its late at night 
I'm very tired, and I'm not feeling right 
All I wish was to be alone 
stay away, don't you invade my home 
Best off if you hang outside 
Don't come in, I'll only run and hide 
(The A is played quickley on the end of the line) 
Chorus: 
Who can it be now 
Who can it be now 
Who can it be now 
Who can it be now 
Bridge: 
Is this the man come to take me away 
Why do they follow me 
Its not the future, that I can see 
Its just my fantasy 
The aaaaahhhhhh part uses A and  chords. 
Comments welcome.