Below is a list of potential QWERTY keyboard 'typos' (typing mistakes) for the phrase 'backups', from the free online typo generator. Enter another phrase to see possible typing errors, or select from one of the "top typos" charts.
Original
backups
Transposition0
abckups
bcakups
bakcups
bacukps
backpus
backusp
Transposition1
cabkups
bkcaups
baukcps
bacpuks
backspu
Transposition2
kacbups
buckaps
bapkucs
bacsupk
Transposition2r
kcabups
bukcaps
bapukcs
bacspuk
Transposition0x2
abkcups
abcukps
abckpus
abckusp
bcaukps
bcakpus
bcakusp
bakcpus
bakcusp
bacuksp
Slip3A
acbkups
bckaups
bakucps
bacupks
backpsu
Slip3B
cbakups
bkacups
bauckps
bacpkus
backsup
Omission
ackups
bckups
bakups
bacups
backps
backus
backup
Repetition
bbackups
baackups
bacckups
backkups
backuups
backupps
backupss
QWERTY Substitution
vackups
nackups
bsckups
baxkups
bavkups
bacjups
baclups
backyps
backips
backuos
backupa
backupd
QWERTY Repetition after
bvackups
bnackups
basckups
bacxkups
bacvkups
backjups
backlups
backuyps
backuips
backupos
backupsa
backupsd
QWERTY Repetition before
vbackups
nbackups
bsackups
baxckups
bavckups
bacjkups
baclkups
backyups
backiups
backuops
backupas
backupds
QWERTY Substitution Transposed
avckups
vcakups
vakcups
vacukps
vackpus
vackusp
anckups
ncakups
nakcups
nacukps
nackpus
nackusp
sbckups
bcskups
bskcups
bscukps
bsckpus
bsckusp
abxkups
bxakups
bakxups
baxukps
baxkpus
baxkusp
abvkups
bvakups
bakvups
bavukps
bavkpus
bavkusp
abcjups
bcajups
bajcups
bacujps
bacjpus
bacjusp
abclups
bcalups
balcups
baculps
baclpus
baclusp
abckyps
bcakyps
bakcyps
bacykps
backpys
backysp
abckips
bcakips
bakcips
bacikps
backpis
backisp
abckuos
bcakuos
bakcuos
bacukos
backous
backuso
abckupa
bcakupa
bakcupa
bacukpa
backpua
backuap
abckupd
bcakupd
bakcupd
bacukpd
backpud
backudp
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