alternate
back and fill
beat
beating
bicker
blench
bob
bobble
boggle
careen
change
coggle
dance
dangle
demur
dither
ebb and flow
equivocate
falter
fight shy of
flap
flick
flicker
flinch
flip
flit
flitter
flop
flounder
fluctuate
fluctuation
flutter
go pitapat
go through phases
gutter
halt
hang back
hang off
have qualms
hem and haw
hesitate
hold off
librate
lurch
make bones about
nutate
oscillate
oscillation
communicator
motility
motion
move
move back and forth
movement
pause
sound
sway
swing
vocalise
vocalize
voice
waffle
dwell on
hover
linger
linger over
vacillate
vibrate
wavered
wavering
wavers
dovo
hesitancy
irresolution
quaver
steely
Laver
aver
baver
braver
caver
craver
disfavor
engraver
favor
flavor
graver
laver
paver
raver
saver
savor
shaver
staver
waiver