i Register
In some senses, patter is marked as obsolete. Watch for register when choosing this word.
ADV
gently, lightly, softly
down
The little feet pattered down the hallway as the child rushed to greet her grandmother.
PREP
across
The rain pattered across the roof while we sat inside drinking tea.
against, along
The rain pattered against the window while we sat inside drinking tea.
on
The drummer's fingers pattered on the wooden table while he waited for his coffee.