Below is a list of potential QWERTY keyboard 'typos' (typing mistakes) for the phrase 'built', from the free online typo generator. Enter another phrase to see possible typing errors, or select from one of the "top typos" charts.
Original
built
Transposition0
ubilt
biult
bulit
buitl
Transposition1
iublt
bliut
butli
Transposition2
luibt
btilu
Transposition2r
liubt
btliu
Transposition0x2
ublit
ubitl
biutl
Slip3A
uiblt
bilut
bulti
Slip3B
ibult
bluit
butil
Omission
uilt
bilt
bult
buit
buil
Repetition
bbuilt
buuilt
buiilt
buillt
builtt
QWERTY Substitution
vuilt
nuilt
byilt
biilt
buult
buolt
buikt
builr
buily
QWERTY Repetition after
bvuilt
bnuilt
buyilt
buiilt
buiult
buiolt
builkt
builtr
builty
QWERTY Repetition before
vbuilt
nbuilt
byuilt
biuilt
buuilt
buoilt
buiklt
builrt
builyt
QWERTY Substitution Transposed
uvilt
viult
vulit
vuitl
unilt
niult
nulit
nuitl
ybilt
biylt
bylit
byitl
ibilt
bilit
biitl
ubult
bulut
buutl
ubolt
boult
bulot
buotl
ubikt
biukt
bukit
buitk
ubilr
biulr
bulir
buirl
ubily
biuly
buliy
buiyl
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