Hi again, no worries si16, hope you come up with some cool songs based on those tonalities. Here's an idea based on combining the Dorian and Aeolian (natural minor) modes:
Am D Em G
Am F Em G
Notice that the D suggests A Dorian which has a cool and smooth kind of sound, but the F suggests A Aeolian (natural minor), which has a darker sadder kind of sound.
And no worries Jean, no offense taken.
James