Below is a list of potential QWERTY keyboard 'typos' (typing mistakes) for the phrase 'tech 21', from the free online typo generator. Enter another phrase to see possible typing errors, or select from one of the "top typos" charts.
Original
tech 21
Transposition0
etch 21
tceh 21
tehc 21
tec h21
tech2 1
tech 12
Transposition1
ceth 21
thce 21
te hc21
tec2 h1
tech12
Transposition2
hect 21
t che21
te2h c1
tec1 2h
Transposition2r
hcet 21
t hce21
te2 hc1
tec12 h
Transposition0x2
ethc21
etc h21
etch2 1
etch 12
tce h21
tceh2 1
tceh 12
tehc2 1
tehc 12
tec h12
Slip3A
ecth 21
tche 21
teh c21
tec 2h1
tech21
Slip3B
cteh 21
thec 21
te ch21
tec2h 1
tech1 2
Omission
ech 21
tch 21
teh 21
tec 21
tech21
tech 1
tech 2
Repetition
ttech 21
teech 21
tecch 21
techh 21
tech 21
tech 221
tech 211
QWERTY Substitution
rech 21
yech 21
twch 21
trch 21
texh 21
tevh 21
tecg 21
tecj 21
QWERTY Repetition after
trech 21
tyech 21
tewch 21
terch 21
tecxh 21
tecvh 21
techg 21
techj 21
QWERTY Repetition before
rtech 21
ytech 21
twech 21
trech 21
texch 21
tevch 21
tecgh 21
tecjh 21
QWERTY Substitution Transposed
erch 21
rceh 21
rehc 21
rec h21
rech2 1
rech 12
eych 21
yceh 21
yehc 21
yec h21
yech2 1
yech 12
wtch 21
tcwh 21
twhc 21
twc h21
twch2 1
twch 12
rtch 21
tcrh 21
trhc 21
trc h21
trch2 1
trch 12
etxh 21
txeh 21
tehx 21
tex h21
texh2 1
texh 12
etvh 21
tveh 21
tehv 21
tev h21
tevh2 1
tevh 12
etcg 21
tceg 21
tegc 21
tec g21
tecg2 1
tecg 12
etcj 21
tcej 21
tejc 21
tec j21
tecj2 1
tecj 12
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