Below is a list of potential QWERTY keyboard 'typos' (typing mistakes) for the phrase 'black', from the free online typo generator. Enter another phrase to see possible typing errors, or select from one of the "top typos" charts.
Original
black
Transposition0
lback
balck
blcak
blakc
Transposition1
albck
bcalk
blkca
Transposition2
clabk
bkacl
Transposition2r
calbk
bkcal
Transposition0x2
lbcak
lbakc
balkc
Slip3A
labck
baclk
blcka
Slip3B
ablck
bclak
blkac
Omission
lack
back
blck
blak
blac
Repetition
bblack
bllack
blaack
blacck
blackk
QWERTY Substitution
vlack
nlack
bkack
blsck
blaxk
blavk
blacj
blacl
QWERTY Repetition after
bvlack
bnlack
blkack
blasck
blacxk
blacvk
blackj
blackl
QWERTY Repetition before
vblack
nblack
bklack
blsack
blaxck
blavck
blacjk
blaclk
QWERTY Substitution Transposed
lvack
valck
vlcak
vlakc
lnack
nalck
nlcak
nlakc
kback
bakck
bkcak
bkakc
lbsck
bslck
blcsk
blskc
lbaxk
balxk
blxak
blakx
lbavk
balvk
blvak
blakv
lbacj
balcj
blcaj
blajc
lbacl
balcl
blcal
blalc
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
$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