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