alternate
back down
balance
balk
be dilatory
blench
boggle
call a recess
debate
delay
deliberate
demur
dither
doubt
equivocate
falter
fear
fight shy of
filibuster
flinch
fluctuate
fumble
gain time
halt
hang
hang back
hang fire
hang in doubt
hang off
have qualms
haver
haw
hem
hem and haw
hold back
hold off
hover
hum
hum and haw
jib
let up
make bones about
make time
mammer
pause
play for time
ponder
dwell on
linger
linger over
oscillate
vacillate
vibrate
waver
hesitated
hesitates
hesitating