Below is a list of potential QWERTY keyboard 'typos' (typing mistakes) for the phrase 'sefour', from the free online typo generator. Enter another phrase to see possible typing errors, or select from one of the "top typos" charts.
Original
sefour
Transposition0
esfour
sfeour
seofur
sefuor
seforu
Transposition1
fesour
sofeur
seuofr
sefruo
Transposition2
oefsur
sufoer
serouf
Transposition2r
ofesur
suofer
seruof
Transposition0x2
esofur
esfuor
esforu
sfeuor
sfeoru
seofru
Slip3A
efsour
sfoeur
seoufr
sefuro
Slip3B
fseour
soefur
seufor
sefrou
Omission
efour
sfour
seour
sefur
sefor
sefou
Repetition
ssefour
seefour
seffour
sefoour
sefouur
sefourr
QWERTY Substitution
aefour
defour
swfour
srfour
sedour
segour
sefiur
sefpur
sefoyr
sefoir
sefoue
sefout
QWERTY Repetition after
saefour
sdefour
sewfour
serfour
sefdour
sefgour
sefoiur
sefopur
sefouyr
sefouir
sefoure
sefourt
QWERTY Repetition before
asefour
dsefour
swefour
srefour
sedfour
segfour
sefiour
sefpour
sefoyur
sefoiur
sefouer
sefoutr
QWERTY Substitution Transposed
eafour
afeour
aeofur
aefuor
aeforu
edfour
dfeour
deofur
defuor
deforu
wsfour
sfwour
swofur
swfuor
swforu
rsfour
sfrour
srofur
srfuor
srforu
esdour
sdeour
seodur
seduor
sedoru
esgour
sgeour
seogur
seguor
segoru
esfiur
sfeiur
seifur
sefuir
sefiru
esfpur
sfepur
sepfur
sefupr
sefpru
esfoyr
sfeoyr
seofyr
sefyor
sefory
esfoir
sfeoir
seofir
sefior
sefori
esfoue
sfeoue
seofue
sefuoe
sefoeu
esfout
sfeout
seofut
sefuot
sefotu
WrongDoubles
$JSON
$address
$applyDefault
$clone
$commas
$copy
$copyFields
$delete
$entries
$expand
$filt
$getType
$isArray
$isBoolean
$isClass
$isDate
$isElement
$isFunction
$isNumber
$isObject
$isString
$isType
$isValidDate
$json2txt
$keys
$load
$matchall
$parseFloats
$pick
$postJSON
$prune
$save
$set
$sortBy
$stringify
$sum
$svgPoster1
$textify
$toFixed
$type
$without
Glossary
Transposition = adjacent pairs of letters are swapped
Omission = individual letters are missed out
Repetition = individual letters are entered twice consecutively
QWERTY substitution = letters are replaced by each of their QWERTY-keyboard based physical neighbours (e.g. 'h' gets replaced with y, u, j, n, b, g)
QWERTY repetition type 1 = letters are followed by each of their QWERTY-keyboard neighbours
QWERTY repetition type 2 = letters are preceded by each of their QWERTY-keyboard neighbours
