Some of these chord forms are difficult to play, particularly the G form. The most important thing is to be able to visualize these shapes, especially the positions of the root notes. Remember that major and minor chords are made up of three different notes. Any more notes in a chord shape are just doublings of those notes.
This means it is possible to play just three notes from any of these chord forms instead of using the whole shape. Some common examples of three note voicings on the top three strings are shown below, along with an example which makes use of them. Once you have learnt them, try transposing them to other keys.
G
G
G
You should also practice using your chord shapes as arpeggios, as shown here.