Below is a list of potential QWERTY keyboard 'typos' (typing mistakes) for the phrase 'herco', from the free online typo generator. Enter another phrase to see possible typing errors, or select from one of the "top typos" charts.
Original
herco
Transposition0
ehrco
hreco
hecro
heroc
Transposition1
rehco
hcreo
heocr
Transposition2
cerho
horce
Transposition2r
creho
hocre
Transposition0x2
ehcro
ehroc
hreoc
Slip3A
erhco
hrceo
hecor
Slip3B
rheco
hcero
heorc
Omission
erco
hrco
heco
hero
herc
Repetition
hherco
heerco
herrco
hercco
hercoo
QWERTY Substitution
gerco
jerco
hwrco
hrrco
heeco
hetco
herxo
hervo
herci
hercp
QWERTY Repetition after
hgerco
hjerco
hewrco
herrco
hereco
hertco
hercxo
hercvo
hercoi
hercop
QWERTY Repetition before
gherco
jherco
hwerco
hrerco
heerco
hetrco
herxco
hervco
hercio
hercpo
QWERTY Substitution Transposed
egrco
greco
gecro
geroc
ejrco
jreco
jecro
jeroc
whrco
hrwco
hwcro
hwroc
rhrco
hrcro
hrroc
eheco
heceo
heeoc
ehtco
hteco
hecto
hetoc
ehrxo
hrexo
hexro
herox
ehrvo
hrevo
hevro
herov
ehrci
hreci
hecri
heric
ehrcp
hrecp
hecrp
herpc
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