C, G, Am

These 3 chords go together in many songs, such as e.g No woman no cry (first line,) Stairway to Heaven , middle solo 3:05).

First, there is a C chord. Then there is a simple verion of G, then Am

1------------------------------------
-------------------------------------
-------------0--------0---------2----
----------2--------0---------2-------
-------3--------2---------0----------
6------------------------------------
       C       G          Am

Above we play the strings  5  4  3
Other patterns might be:
5  4  3  4

5  4  3  2  3  4