I played this along with the actual song and it's 100% spot on perfect
E|----------------------------------------------------------------||
B|----------------------------------------------------------------||
G|----------------------------------------------------------------||
D|--2-2---7/5--5/7----2-2---7/5--5/7------------------------------|| x2
A|--0-0---5/3--3/5----0-0---5/3--3/5------------------------------||
E|----------------------------------------------------------------||
[ Tab from: https://www.guitartabs.cc/tabs/b/black_sabbath/sweet_leaf_tab_ver_12.html ]
or you can also do it this way, which some might find a bit easier
as you don't have to move your hand as much
E|----------------------------------------------------------------||
B|----------------------------------------------------------------||
G|----------------------------------------------------------------||
D|---------7/5--5/7---------7/5--5/7------------------------------||x2
A|---7-7---5/3--3/5---7-7---5/3--3/5------------------------------||
E|---5-5--------------5-5-----------------------------------------||
