Below is a list of potential QWERTY keyboard 'typos' (typing mistakes) for the phrase 'april', from the free online typo generator. Enter another phrase to see possible typing errors, or select from one of the "top typos" charts.
Original
april
Transposition0
paril
arpil
apirl
aprli
Transposition1
rpail
airpl
aplir
Transposition2
ipral
alrip
Transposition2r
irpal
alirp
Transposition0x2
pairl
parli
arpli
Slip3A
prail
aripl
apilr
Slip3B
rapil
aiprl
aplri
Omission
pril
aril
apil
aprl
apri
Repetition
aapril
appril
aprril
apriil
aprill
QWERTY Substitution
spril
aoril
apeil
aptil
aprul
aprol
aprik
QWERTY Repetition after
aspril
aporil
apreil
aprtil
apriul
apriol
aprilk
QWERTY Repetition before
sapril
aopril
aperil
aptril
apruil
aproil
aprikl
QWERTY Substitution Transposed
psril
srpil
spirl
sprli
oaril
aroil
aoirl
aorli
paeil
aepil
apiel
apeli
patil
atpil
apitl
aptli
parul
arpul
apurl
aprlu
parol
arpol
aporl
aprlo
parik
arpik
apirk
aprki
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