Below is a list of potential QWERTY keyboard 'typos' (typing mistakes) for the phrase 'speck', from the free online typo generator. Enter another phrase to see possible typing errors, or select from one of the "top typos" charts.
Original
speck
Transposition0
pseck
sepck
spcek
spekc
Transposition1
epsck
scepk
spkce
Transposition2
cpesk
skecp
Transposition2r
cepsk
skcep
Transposition0x2
pscek
psekc
sepkc
Slip3A
pesck
secpk
spcke
Slip3B
espck
scpek
spkec
Omission
peck
seck
spck
spek
spec
Repetition
sspeck
sppeck
speeck
specck
speckk
QWERTY Substitution
apeck
dpeck
soeck
spwck
sprck
spexk
spevk
specj
specl
QWERTY Repetition after
sapeck
sdpeck
spoeck
spewck
sperck
specxk
specvk
speckj
speckl
QWERTY Repetition before
aspeck
dspeck
sopeck
spweck
spreck
spexck
spevck
specjk
speclk
QWERTY Substitution Transposed
paeck
aepck
apcek
apekc
pdeck
depck
dpcek
dpekc
oseck
seock
socek
soekc
pswck
swpck
spcwk
spwkc
psrck
srpck
spcrk
sprkc
psexk
sepxk
spxek
spekx
psevk
sepvk
spvek
spekv
psecj
sepcj
spcej
spejc
psecl
sepcl
spcel
spelc
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