Below is a list of potential QWERTY keyboard 'typos' (typing mistakes) for the phrase 'gum tree', from the free online typo generator. Enter another phrase to see possible typing errors, or select from one of the "top typos" charts.
Original
gum tree
Transposition0
ugm tree
gmu tree
gu mtree
gumt ree
gum rtee
gum tere
Transposition1
mug tree
g mutree
gut mree
gumrt ee
gum erte
gum teer
Transposition2
umgtree
gtm uree
gur tmee
gumetr e
gum eret
Transposition2r
mugtree
gt muree
gurt mee
gumert e
gum eert
Transposition0x2
ug mtree
ugmt ree
ugm rtee
ugm tere
ugm tree
gmut ree
gmu rtee
gmu tere
gmu tree
gu mrtee
gu mtere
gu mtree
gumt ere
gumt ree
gum rtee
Slip3A
umg tree
gm utree
gu tmree
gumtr ee
gum rete
gum teer
Slip3B
mgu tree
g umtree
gutm ree
gumr tee
gum etre
gum tere
Omission
um tree
gm tree
gu tree
gumtree
gum ree
gum tee
gum tre
Repetition
ggum tree
guum tree
gumm tree
gum tree
gum ttree
gum trree
gum treee
QWERTY Substitution
fum tree
hum tree
gym tree
gim tree
gun tree
gum rree
gum yree
gum teee
gum ttee
gum trwe
gum trre
gum trew
gum trer
QWERTY Repetition after
gfum tree
ghum tree
guym tree
guim tree
gumn tree
gum trree
gum tyree
gum treee
gum trtee
gum trewe
gum trere
gum treew
gum treer
QWERTY Repetition before
fgum tree
hgum tree
gyum tree
gium tree
gunm tree
gum rtree
gum ytree
gum teree
gum ttree
gum trwee
gum trree
gum trewe
gum trere
QWERTY Substitution Transposed
ufm tree
fmu tree
fu mtree
fumt ree
fum rtee
fum tere
uhm tree
hmu tree
hu mtree
humt ree
hum rtee
hum tere
ygm tree
gmy tree
gy mtree
gymt ree
gym rtee
gym tere
igm tree
gmi tree
gi mtree
gimt ree
gim rtee
gim tere
ugn tree
gnu tree
gu ntree
gunt ree
gun rtee
gun tere
ugm rree
gmu rree
gu mrree
gumr ree
gum rere
ugm yree
gmu yree
gu myree
gumy ree
gum ryee
gum yere
ugm teee
gmu teee
gu mteee
gumt eee
gum etee
ugm ttee
gmu ttee
gu mttee
gumt tee
gum tete
ugm trwe
gmu trwe
gu mtrwe
gumt rwe
gum rtwe
gum twre
gum trew
ugm trre
gmu trre
gu mtrre
gumt rre
gum rtre
gum trer
ugm trew
gmu trew
gu mtrew
gumt rew
gum rtew
gum terw
gum trwe
ugm trer
gmu trer
gu mtrer
gumt rer
gum rter
gum terr
gum trre
WrongDoubles
gum trre
$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