fear
live to regret
bewail
deplore
bemoan
lament
shame
regrettable
too bad
guilt
sayang
ruesome
regretlessness
regret
remorse
compunction
regrettingly
self-reproach
rue the day
desire
whip the cat
regretfully
repine
apologize
wear sackcloth and ashes
regrettableness
pity
regretfulness
regretting
apology
eat one's words
repent
Ichabod
I'm afraid so
regretter
regretful
F
ochanee
no such luck
not want to do that
lamentably
seem like a good idea at the time
could have, would have, should have
whoops-a-daisy
whoopsie-daisy
penance
penitence
repentance
look back
fluff one's lines