accept, except, and expect
adapt and adopt
adverse and averse
advice and advise
affect and effect
aggravate and irritate
all ready and already
all together and altogether
allude and elude
allusion and illusion
allusive and elusive
a lot (much, many)
altar and alter
ambiguous and ambivalent
amoral and immoral
amount and number
amuse and bemuse
anxious and eager
anyone and any one
appraise and apprise
are and our
assure, ensure, and insure
baited and bated
beside and besides
breath and breathe
capital and capitol
censor and censure
choose, chose, and chosen
chord and cord
cite and site
click and clique
climactic and climatic
clothes and cloths
collaborate and cooperate
complement and compliment
conscience and conscious
continual and continuous
council and counsel
days and daze
dazed and dazzled
defective and deficient
deprecate and depreciate
desert and dessert
device and devise
discreet and discrete
disinterested and uninterested
distinct and distinctive
dual and duel
economic and economical
eminent and imminent
envelop and envelope
epigram, epigraph, and epitaph
eventually and ultimately
every day and everyday
explicit and implicit
farther and further
few (fewer) and little (less)
flaunt and flout
flounder and founder
foreword and forward
formally and formerly
fortunate and fortuitous
full and fulsome
gourmand and gourmet
grisly and grizzly
hanged and hung
hardy and hearty
historic and historical
hoard and horde
home and hone
hoping and hopping
imply and infer
in and into
incredible and incredulous
ingenious and ingenuous
intense and intent
its and it's
last and latter
later and latter
lay and lie
lead and led
leave and let
lend and loan
lessen and lesson
liable and libel
lightening and lightning
literally and figuratively
loath and loathe
loose and lose
many and much
marital and martial
maybe and may be
media and medium
militate and mitigate
miner and minor
moot and mute
noisome and noisy
official and officious
obsolescent and obsolete
pair, pare, and pear
passed and past
peace and piece
perquisite and prerequisite
persecute and prosecute
personal and personnel
perspective and prospective
perverse and perverted
pore and pour
precede and proceed
premier and premiere
prescribe and proscribe
principal and principle
quell and quench
quiet, quit, and quite
quotation and quote
rack and wrack
rain, reign, and rein
raise and rise
rational and rationale
ravage and ravish
recourse and resource
regretful and regrettable
respectively and respectfully
review and revue
riffle and rifle
role and roll
stationary and stationery
statue and statute
sensual and sensuous
serve and service
set and sit
shall and will
shear and sheer
should and would
simple and simplistic
sometime, some time, and sometimes
tail and tale
temerity and timidity
than and then
their, there, and they're
to and too
troop and troupe
vain, vane, and vein
vary and very
veracious and voracious
waist and waste
were, we're, and where
which and who
who and whom
whoever and whomever
whose and who's
young and youthful
your and you're