Below is a list of potential QWERTY keyboard 'typos' (typing mistakes) for the phrase 'pets', from the free online typo generator. Enter another phrase to see possible typing errors, or select from one of the "top typos" charts.
Original
pets
Transposition0
epts
ptes
pest
Transposition1
teps
pste
Transposition2
setp
Transposition2r
step
Transposition0x2
epst
Slip3A
etps
ptse
Slip3B
tpes
pset
Omission
ets
pts
pes
pet
Repetition
ppets
peets
petts
petss
QWERTY Substitution
oets
pwts
prts
pers
peys
peta
petd
QWERTY Repetition after
poets
pewts
perts
petrs
petys
petsa
petsd
QWERTY Repetition before
opets
pwets
prets
perts
peyts
petas
petds
QWERTY Substitution Transposed
eots
otes
oest
wpts
ptws
pwst
rpts
ptrs
prst
eprs
pres
pesr
epys
pyes
pesy
epta
ptea
peat
eptd
pted
pedt
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