Below is a list of potential QWERTY keyboard 'typos' (typing mistakes) for the phrase 'travel', from the free online typo generator. Enter another phrase to see possible typing errors, or select from one of the "top typos" charts.
Original
travel
Transposition0
rtavel
tarvel
trvael
traevl
travle
Transposition1
artvel
tvarel
treval
tralev
Transposition2
vratel
teavrl
trlvea
Transposition2r
vartel
tevarl
trleva
Transposition0x2
rtvael
rtaevl
rtavle
tarevl
tarvle
trvale
Slip3A
ratvel
tavrel
trveal
traelv
Slip3B
atrvel
tvrael
treavl
tralve
Omission
ravel
tavel
trvel
trael
travl
trave
Repetition
ttravel
trravel
traavel
travvel
traveel
travell
QWERTY Substitution
rravel
yravel
teavel
ttavel
trsvel
tracel
trabel
travwl
travrl
travek
QWERTY Repetition after
trravel
tyravel
treavel
trtavel
trasvel
travcel
travbel
travewl
traverl
travelk
QWERTY Repetition before
rtravel
ytravel
teravel
ttravel
trsavel
tracvel
trabvel
travwel
travrel
travekl
QWERTY Substitution Transposed
rarvel
rrvael
rraevl
rravle
ryavel
yarvel
yrvael
yraevl
yravle
etavel
taevel
tevael
teaevl
teavle
tatvel
ttvael
ttaevl
ttavle
rtsvel
tsrvel
trvsel
trsevl
trsvle
rtacel
tarcel
trcael
traecl
tracle
rtabel
tarbel
trbael
traebl
trable
rtavwl
tarvwl
trvawl
trawvl
travlw
rtavrl
tarvrl
trvarl
trarvl
travlr
rtavek
tarvek
trvaek
traevk
travke
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