Natural Minor Scale (Relative Minor)

By flatting the 3rd, 6th and 7th notes of any Major scale by a half step,
you have the Natural Minor scale. The Natural Minor scale is darker 
sounding that Major. Generally, the Natural Minor scale works over a minor 
chord, minor 7th chord or power chord of the same name.

Pattern 1

E II-----------------------------------------------3--(5)--------------
B II--------------------------------------3--5--6----------------------
G II---------------------------(2)--4--5-------------------------------
D II------------------2--3--5------------------------------------------
A II---------2--3--5---------------------------------------------------
E II---3--(5)----------------------------------------------------------

Pattern 2

E II-------------------------------------------------(5)--7--8---------
B II----------------------------------------5--6--7--------------------
G II-------------------------------4--5--7-----------------------------
D II-----------------------5--(7)--------------------------------------
A II--------------5--7--8----------------------------------------------
E II---(5)--7--8-------------------------------------------------------

Pattern 3

E II-----------------------------------------------------7--8--10------
B II--------------------------------------------8--(10)----------------
G II----------------------------------7--9--10-------------------------
D II----------------------(7)--9--10-----------------------------------
A II------------7--8--10-----------------------------------------------
E II---7--8--10--------------------------------------------------------

#Please note that the numbers in close parenthesis is the root note