The relative minor scale contains seven modes. They are, from the first up (in the key of A Minor):

The guitar pattern for the scale is:

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The bass pattern for the scale is:

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The piano pattern for the scale is:

A  B  C  D  E  F  G  A
1  2  3  1  2  3  4  5

Source: The Keyboard Grimoire (book), Advanced Scale Concepts and Licks for Guitar (book)