This tab illustrate how to play basic 3 note open position chords in root 
position and in their inversions. (open position means more than an octave apart.)
I know this seems like a strange exercise on bass,
but I feel it's a great way to get more familiar with the notes on the bass. 
It' also great for understanding how chords are built and voiced.

          1 3  5
D major = D,F#,A

 |Dmaj    |Dmaj/F# |Dmaj/A  |
G|11——————|14——————|19——————|
D|————————|12——————|16——————|
A|12——————|————————|————————|
E|10——————|14——————|17——————|

          1 b3 5
D minor = D, F,A

 |Dmin    |Dmin/F  |Dmin/A  |
G|10——————|14——————|19——————|
D|————————|12——————|15——————|
A|12——————|————————|————————|
E|10——————|13——————|17——————|

               1 3 #5
D Augmented =  D,F#,A#

 |Daug    |Daug/F# |Daug/A  |
G|11——————|15——————|19——————|
D|————————|12——————|16——————|
A|13——————|————————|————————|
E|10——————|14——————|18——————|

               1 b3 b5
D diminished = D, F, Ab

 |Dmin    |Dmin/F  |Dmin/Ab |
G|10——————|13——————|19——————|
D|————————|12——————|15——————|
A|11——————|————————|————————|
E|10——————|13——————|16——————|

Knowing all these inversions will make changing from chord to chord smoother.

Example)

 D maj    |A maj/E |B min/D |G maj/D |D maj/F#|D aug/F#|
G|11——————|14——————|11——————|12——————|14——————|15——————|
D|————————|11——————|9———————|9———————|12——————|12——————|
A|12——————|————————|————————|————————|————————|————————|
E|10——————|12——————|10——————|10——————|14——————|14——————|
 |1 + 2 + |1 + 2 + |1 + 2 + |1 + 2 + |1 + 2 + |1 + 2 + |

 |G maj   |G min   |D maj/A |
G|16——————|15——————|19——————||
D|————————|————————|16——————||
A|17——————|17——————|————————||
E|15——————|15——————|17——————||
 |1 + 2 + |1 + 2 + |1 + 2 + |

Agian, this may seem like a silly thing to do on a bass
 since playing chords is not a common thing. 
but i think that this is great for understanding how chords are built 
and also how certain notes in certain chords want to go in ceratin directions.
It's also fun to play these chords as arpeggios.
It's great for string skipping. 

Please give me constructive criticism.

Thanks,

Connor Larkin