This is an somewhat elaborate workout, so we are going to sudivise in into four parts

- going up the fretboard using uninterrupted 16th notes patterns
- going down the fretboard using uninterrupted 16th notes patterns
- combining both to go up and down the fretboard
- other possibilities

Let's begin with the major scale. This 12-note pattern allow you to go up the scale to the major 7th, then down, then up again but starting on the second note of the scale (which is the dorian mode) and so on until you finally get to repeat the major scale (or ionian mode).

For this exercise, I have shown you a possible fingering (there are many more, just try them out) of the scale of D major. So you go up and down D ionian, then E dorian, then F# phrygian, then G lydian, then A mixolydian, then B aeolian, then C# locrian, then D ionian an octave higher than at the beginning.

Practice until you can effortlessly play it at 100 in every scale. There are 12 different major scales (D, G, C, F, Bb, Eb, Ab, Db, Gb or F#, Db or C#, B, E and A major). As there are 7 modes in each scales, that gives you plenty of work already.