20th Note Groove 9d, Section IV
This exercise is from my book, Groove Studies with the 20th Note.
Your ears may want to hear the bass drum as playing 8th notes, but it is actually playing a 5 over 2 pattern (or every other 20th note).
The Hi Hat is playing quarter notes, so that is the anchor point.
The snare is reinforcing the actual time by playing backbeat on 2&4.
The ride is playing a 5 over 4 pattern (or every fourth 20th note).
If you'd like to go deeper with this topic of groove, you can find the book with over 600 exercises & play-alongs here: https://a.co/d/6TPBdSw