Below is a list of potential QWERTY keyboard 'typos' (typing mistakes) for the phrase 'perle', from the free online typo generator. Enter another phrase to see possible typing errors, or select from one of the "top typos" charts.
Original
perle
Transposition0
eprle
prele
pelre
perel
Transposition1
reple
plree
peelr
Transposition2
lerpe
Transposition2r
lrepe
pelre
Transposition0x2
eplre
eprel
preel
Slip3A
erple
prlee
peler
Slip3B
rpele
plere
peerl
Omission
erle
prle
pele
pere
perl
Repetition
pperle
peerle
perrle
perlle
perlee
QWERTY Substitution
oerle
pwrle
prrle
peele
petle
perke
perlw
perlr
QWERTY Repetition after
poerle
pewrle
perrle
perele
pertle
perlke
perlew
perler
QWERTY Repetition before
operle
pwerle
prerle
peerle
petrle
perkle
perlwe
perlre
QWERTY Substitution Transposed
eorle
orele
oelre
oerel
wprle
prwle
pwlre
pwrel
rprle
prlre
prrel
epele
pelee
peeel
eptle
ptele
pelte
petel
eprke
preke
pekre
perek
eprlw
prelw
pelrw
perwl
eprlr
prelr
pelrr
perrl
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
$table
$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