Hello GMC! I wrote this lesson for beginner guitarists. I'm going to talk about strumming. Take a look at the notes below. If you have a pattern of 16th notes, normally you play this pattern using the downstroke and the upstroke movements alternately. You can remove some of these movements and you have a new pattern to play.
It's very easy to do! Anyway, you must preserve the direction of remaining movements.
Key: G major
Time signature: 4/4
Tempo: 76 bpm