Below is a list of potential QWERTY keyboard 'typos' (typing mistakes) for the phrase 'quartet', from the free online typo generator. Enter another phrase to see possible typing errors, or select from one of the "top typos" charts.
Original
quartet
Transposition0
uqartet
qaurtet
quratet
quatret
quarett
quartte
Transposition1
auqrtet
qrautet
qutraet
quaetrt
Transposition2
ruaqtet
qtaruet
quertat
quatter
Transposition2r
rauqtet
qtrauet
quetrat
quatetr
Transposition0x2
uqratet
uqatret
uqarett
uqartte
qautret
qaurett
qaurtte
quraett
quratte
quatrte
Slip3A
uaqrtet
qarutet
qurtaet
quatert
quarett
Slip3B
aqurtet
qruatet
qutaret
quaertt
quartte
Omission
uartet
qartet
qurtet
quatet
quaret
quartt
quarte
Repetition
qquartet
quuartet
quaartet
quarrtet
quarttet
quarteet
quartett
QWERTY Substitution
wuartet
qyartet
qiartet
qusrtet
quaetet
quattet
quarret
quaryet
quartwt
quartrt
quarter
quartey
QWERTY Repetition after
qwuartet
quyartet
quiartet
quasrtet
quaretet
quarttet
quartret
quartyet
quartewt
quartert
quartetr
quartety
QWERTY Repetition before
wquartet
qyuartet
qiuartet
qusartet
quaertet
quatrtet
quarrtet
quarytet
quartwet
quartret
quartert
quarteyt
QWERTY Substitution Transposed
uwartet
waurtet
wuratet
wuatret
wuarett
wuartte
yqartet
qayrtet
qyratet
qyatret
qyarett
qyartte
iqartet
qairtet
qiratet
qiatret
qiarett
qiartte
uqsrtet
qsurtet
qurstet
qustret
qusrett
qusrtte
uqaetet
qauetet
queatet
quateet
quaeett
quaette
uqattet
qauttet
qutatet
quatett
quattte
uqarret
qaurret
quraret
quarert
quarrte
uqaryet
qauryet
qurayet
quayret
quareyt
quaryte
uqartwt
qaurtwt
quratwt
quatrwt
quarwtt
quarttw
uqartrt
qaurtrt
quratrt
quatrrt
quarrtt
quarttr
uqarter
qaurter
qurater
quatrer
quaretr
quartre
uqartey
qaurtey
quratey
quatrey
quarety
quartye
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