Bm - Triad 1st Inv D B and E strings

Minor chords are made up of the Root, flattened (or minor) 3rd and 5th notes of the major scale.
Root Inversions start with the Root note as the lowest pitch note in the chord.
1st Inversions start with the minor 3rd as the lowest pitch note in the chord.
2nd inversions start with the 5th as the lowest pitch note in the chord.
In the chord diagrams I am showing the position of the Root, minor 3rd and 5th within the chord shape.