In the following exercise the first chord uses the chords with the roots on the fifth string while the middle and right column uses the barre chords with the root on the sixth string beginning with the key of C on the third fret. C is our I chord, F is our IV, and G is our V.

After learning the key of C in the we to move up to the 4th fret to play in C#. Then the 5th fret for D etc.

So, starting on fret 3 we have C, F (1st fret), and G (3rd fret). Fret 4 is C#, F# (2nd fret), and G (3rd fret) etc. as illustrated below:

fret

3 = C F G
4 = C# F# G# (D♭ G♭ A♭)
5 = D G A
6 = D# G# A# (E♭ B♭ C)
7 = E A B
8 = F B♭C
etc.

The same is true with chords of different qualities i.e. minor, 7, m7, and maj7. Play the chords below in every key ascending one fret (a semitone) at a time.

The V7 chord
In the exercises above the quality of the IV and V chords are the same for the sake of learning the chord shapes. But, in the real world of music, the V chord is usually, but not always, the  dominant 7 chords, such as G7 in the key of C.

So, use the G7 below for the V chord in every exercise: