Below is a list of potential QWERTY keyboard 'typos' (typing mistakes) for the phrase 'last', from the free online typo generator. Enter another phrase to see possible typing errors, or select from one of the "top typos" charts.
Original
last
Transposition0
alst
lsat
lats
Transposition1
salt
ltsa
Transposition2
tasl
Transposition2r
tsal
Transposition0x2
alts
Slip3A
aslt
lsta
Slip3B
slat
ltas
Omission
ast
lst
lat
las
Repetition
llast
laast
lasst
lastt
QWERTY Substitution
kast
lsst
laat
ladt
lasr
lasy
QWERTY Repetition after
lkast
lasst
lasat
lasdt
lastr
lasty
QWERTY Repetition before
klast
lsast
laast
ladst
lasrt
lasyt
QWERTY Substitution Transposed
akst
ksat
kats
slst
lsts
alat
lata
aldt
ldat
latd
alsr
lsar
lars
alsy
lsay
lays
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
$sortKeys
$stringify
$stringifySafe
$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