It's just basically one thing the whole song G|------------------| D|------------------| x2 A|----0-33-0----0-3-| E|-11--------11-----| then G|------------------|---------------------| D|------------------|---------------------| A|------55--------5-|------55------03310--| E|-33-6----6-33-6---|-33-6----6-33------3-| there you go. it's a nice reggae line