this a basic rock beat and it works perfectly at any speed but just try in a medium speed and after you dominate it try it faster and faster


C -------------------------------------------X
H x--x--x--x--x--x--x--X--x--x--x--x--x--x--x-
S ------o-----------o-----------o-----------o-
B o--------o---oo--------o-----------o--oo---o

repet that as many as necessary times then, try a fill just like this

C ------------------X
S ddoooo-------------
t ------oooo---------   and just use your imagination
T ----------oooo-----
F --------------oooo-
B o-----o---o---o---o