Below is a list of potential QWERTY keyboard 'typos' (typing mistakes) for the phrase 'park', from the free online typo generator. Enter another phrase to see possible typing errors, or select from one of the "top typos" charts.
Original
park
Transposition0
aprk
prak
pakr
Transposition1
rapk
pkra
Transposition2
karp
Transposition2r
krap
Transposition0x2
apkr
Slip3A
arpk
prka
Slip3B
rpak
pkar
Omission
ark
prk
pak
par
Repetition
ppark
paark
parrk
parkk
QWERTY Substitution
oark
psrk
paek
patk
parj
parl
QWERTY Repetition after
poark
pasrk
parek
partk
parkj
parkl
QWERTY Repetition before
opark
psark
paerk
patrk
parjk
parlk
QWERTY Substitution Transposed
aork
orak
oakr
sprk
prsk
pskr
apek
peak
pake
aptk
ptak
pakt
aprj
praj
pajr
aprl
pral
palr
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