These off beat hi hat patterns can be very tricky. If you are not used to it, start slow and if needed, separate the hi hat and snare parts and then do the same with hi hat and bass drum.
One Measure Beat EXERCISES

One Measure Beat 1

One Measure Beat 2

One Measure Beat 3

One Measure Beat 4

One Measure Beat 5

One Measure Beat 6

One Measure Beat 7

One Measure Beat 8

One Measure Beat 9

One Measure Beat 10

One Measure Beat 11
Two Measure Beat EXERCISES

Two Measures Beat 1

Two Measures Beat 2

Two Measures Beat 3

Two Measures Beat 4

Two Measures Beat 5

Two Measures Beat 6

Two Measures Beat 7

Two Measures Beat 8

Two Measures Beat 9

Two Measures Beat 10