Behind and ahead
ProTiming lab
The same backbeat played laid back in bar 1 and pushed in bar 2.
The pattern
Bar 1
Closed hat
Kick
Crash
Snare
Bar 2
Closed hat
Kick
Crash
This is a Pro lesson
Get every bar of the pattern, which finger plays what, and the practice steps, with feedback on every hit as you play.
See Pro