dislike
not like
not lucky
unlucky
untie
not tie
unkind
not kind
repack
pack again
tie again
retie
unclean
not clean
mix before
premix
prewrite
write before
rename
name again
read again
reread
dishonest
not honest
not happy
unhappy
disappear
not appear
disobey
not obey
not agree
disagree
test before
pretest
paint again
repaint
preschool
before school
unlock
not lock
pay before
prepay