Collocations for mumble - verb
ADV.
incoherently | drowsily, sleepily
PREP.
about
I couldn''t understand what he was mumbling about.
I couldn''t understand what he was mumbling about.
into
She mumbled something into her pillow.
She mumbled something into her pillow.
to
George mumbled incoherently to himself.
George mumbled incoherently to himself.