Below is a list of potential QWERTY keyboard 'typos' (typing mistakes) for the phrase 'drop', from the free online typo generator. Enter another phrase to see possible typing errors, or select from one of the "top typos" charts.
Original
drop
Transposition0
rdop
dorp
drpo
Transposition1
ordp
dpor
Transposition2
prod
Transposition2r
pord
Transposition0x2
rdpo
Slip3A
rodp
dopr
Slip3B
odrp
dpro
Omission
rop
dop
drp
dro
Repetition
ddrop
drrop
droop
dropp
QWERTY Substitution
srop
frop
deop
dtop
drip
drpp
droo
QWERTY Repetition after
dsrop
dfrop
dreop
drtop
droip
dropp
dropo
QWERTY Repetition before
sdrop
fdrop
derop
dtrop
driop
drpop
droop
QWERTY Substitution Transposed
rsop
sorp
srpo
rfop
forp
frpo
edop
doep
depo
tdop
dotp
dtpo
rdip
dirp
drpi
rdpp
dprp
rdoo
doro
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