Composers rarely approach silences as systematically as sounds.
In an attempt to remedy this in my own compositions, I’ve created the following PDF’s.
These PDF’s list all of the possible arrangements using eighth notes and eighth rests in 3/4 (6/8) and 4/4 (or 8/8).
Try stringing a few of these rhythms together to create unique (and longer) rhythmic phrases, or put them in different voices to develop rhythmic counterpoint.