I'll use the same example from last time— line 3, page 8 from Syncopation:
Which gives the follow as our foundation pattern, which we'll be embellishing with the bass drum— on various es, &a, and as added after the written snare drum and bass drum hits:
Add bass drum on all as:
Add bass drum on as after written bass drum notes, and on es/as after snare hits:
Add bass drum on &s after written bass drum hits, and e&s after snare hits, :
Add bass drum on as before written bass drum hits, and on &as before snare hits:
And there are other possibilities. When devising your own drills, you can also think about doing something different on the last snare hit in a sequence. Here we're using line 2, p. 8 from your book as the foundation pattern:
I suggest practicing all of these ideas until you can play all the exercises from the book without stopping— lines 2-15, plus the 16 bar exercise. It will be more fun if you use one of my practice loops.