Below is a list of potential QWERTY keyboard 'typos' (typing mistakes) for the phrase 'coffee', from the free online typo generator. Enter another phrase to see possible typing errors, or select from one of the "top typos" charts.
Original
coffee
Transposition0
ocffee
cfofee
cofefe
Transposition1
focfee
cffoee
coeffe
cofeef
Transposition2
fofcee
ceffoe
coefef
Transposition2r
ffocee
ceffoe
coeeff
Transposition0x2
ocffee
ocfefe
cfoefe
cfofee
Slip3A
ofcfee
cffoee
cofefe
cofeef
Slip3B
fcofee
cfofee
coeffe
cofefe
Omission
offee
cffee
cofee
coffe
Repetition
ccoffee
cooffee
cofffee
coffeee
QWERTY Substitution
xoffee
voffee
ciffee
cpffee
codfee
cogfee
cofdee
cofgee
coffwe
coffre
coffew
coffer
QWERTY Repetition after
cxoffee
cvoffee
coiffee
copffee
cofdfee
cofgfee
coffdee
coffgee
coffewe
coffere
coffeew
coffeer
QWERTY Repetition before
xcoffee
vcoffee
cioffee
cpoffee
codffee
cogffee
cofdfee
cofgfee
coffwee
coffree
coffewe
coffere
QWERTY Substitution Transposed
oxffee
xfofee
xofefe
ovffee
vfofee
vofefe
icffee
cfifee
cifefe
pcffee
cfpfee
cpfefe
ocdfee
cdofee
cofdee
codefe
ocgfee
cgofee
cofgee
cogefe
ocfdee
cfodee
codfee
cofede
ocfgee
cfogee
cogfee
cofege
ocffwe
cfofwe
cofwfe
coffew
ocffre
cfofre
cofrfe
coffer
ocffew
cfofew
cofefw
coffwe
ocffer
cfofer
cofefr
coffre
WrongDoubles
coofee
cofeee
cofffe
$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