This is a black sabbath cover but is played differently

Intro:
G-------
D-------
A-7-7-7- 
E------- x2

G-----------------------
D----------------5----5-
A-77777777-5555---5-7---
E----------------------- x 2

Main Riff
G-----------------------
D----------------5----5-
A-77777777-5555---5-7---
E-----------------------

Other thing
G--------------------
D--------------------
A-7777-3-5-77777777--
E--------------------