Below is a list of potential QWERTY keyboard 'typos' (typing mistakes) for the phrase 'prev', from the free online typo generator. Enter another phrase to see possible typing errors, or select from one of the "top typos" charts.
Original
prev
Transposition0
rpev
perv
prve
Transposition1
erpv
pver
Transposition2
vrep
Transposition2r
verp
Transposition0x2
rpve
Slip3A
repv
pevr
Slip3B
eprv
pvre
Omission
rev
pev
prv
pre
Repetition
pprev
prrev
preev
prevv
QWERTY Substitution
orev
peev
ptev
prwv
prrv
prec
preb
QWERTY Repetition after
porev
preev
prtev
prewv
prerv
prevc
prevb
QWERTY Repetition before
oprev
perev
ptrev
prwev
prrev
precv
prebv
QWERTY Substitution Transposed
roev
oerv
orve
epev
peve
tpev
petv
ptve
rpwv
pwrv
prvw
rprv
prvr
rpec
perc
prce
rpeb
perb
prbe
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