Below is a list of potential QWERTY keyboard 'typos' (typing mistakes) for the phrase 'mules', from the free online typo generator. Enter another phrase to see possible typing errors, or select from one of the "top typos" charts.
Original
mules
Transposition0
umles
mlues
muels
mulse
Transposition1
lumes
melus
musel
Transposition2
eulms
msleu
Transposition2r
elums
mselu
Transposition0x2
umels
umlse
mluse
Slip3A
ulmes
mleus
muesl
Slip3B
lmues
meuls
musle
Omission
ules
mles
mues
muls
mule
Repetition
mmules
muules
mulles
mulees
muless
QWERTY Substitution
nules
myles
miles
mukes
mulws
mulrs
mulea
muled
QWERTY Repetition after
mnules
muyles
muiles
mulkes
mulews
mulers
mulesa
mulesd
QWERTY Repetition before
nmules
myules
miules
mukles
mulwes
mulres
muleas
muleds
QWERTY Substitution Transposed
unles
nlues
nuels
nulse
ymles
mlyes
myels
mylse
imles
mlies
miels
milse
umkes
mkues
mueks
mukse
umlws
mluws
muwls
mulsw
umlrs
mlurs
murls
mulsr
umlea
mluea
muela
mulae
umled
mlued
mueld
mulde
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