Common mistakes in English

Over the last few years, we have corrected millions of words in the texts we have processed. Here, we present a list of common mistakes that we have found. The list is sorted according to the frequency with which we corrected the phrase. Not all corrections are present due to privacy concerns.

Position Before After
#1 the a
#2 is are
#3 a an
#4 is was
#5 a the
#6 in on
#7 will would
#8 on in
#9 & and
#10 was were
#11 e-mail email
#12 are is
#13 its it's
#14 have has
#15 if whether
#16 your you're
#17 that which
#18 Hope I hope
#19 you your
#20 to for
#21 can could
#22 that who
#23 of for
#24 ok okay
#25 which that
#26 wanted want
#27 for to
#28 2 two
#29 has have
#30 would will
#31 this these
#32 Im I'm
#33 are were
#34 in at
#35 there their
#36 and to
#37 it this
#38 3 three
#39 in into
#40 have had
#41 at in
#42 of in
#43 could can
#44 to with
#45 to too
#46 need needs
#47 and or
#48 I I've
#49 an a
#50 in to
#51 u you
#52 question questions
#53 this the
#54 has had
#55 were was
#56 the an
#57 had have
#58 the their
#59 it them
#60 the this
#61 can not cannot
#62 1 one
#63 on of
#64 for of
#65 then than
#66 in with
#67 to in
#68 in of
#69 was is
#70 4 four
#71 use used
#72 that this
#73 send sent
#74 cause because
#75 5 five
#76 in for
#77 Lets Let's
#78 everyday every day
#79 dont don't
#80 of on
#81 to of
#82 is it's
#83 for in
#84 form from
#85 or and
#86 in to into
#87 on to
#88 ask asked
#89 of to
#90 the that
#91 Just I just
#92 your the
#93 that the
#94 my the
#95 to and
#96 thru through
#97 with in
#98 at on
#99 health care healthcare
#100 can will

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