I was just thinkng when counting numbers we do things a little oddly
before 20 but from there on out do it pattern like untll we reach 100
then go back to a pattern at 120 (and repeat this cycle every 100)
the pattern is saying the largest 10 multiple first then the smaller ones.
such as  23 = twenty three
         35 = thirty five
        122 = one hundred twenty two
but numbers in the teens are differnt.
14 = fourteen  teen us used as a post fix not a sepret pre word 
(such as teenly four)
114= one hundred fourteen, starts to follow the orginal pattern then
follows the weird one at the end (not one hundred and teenly four)

also 10-13,15  aren't done straight on either
10= ten    (not teen)
11= eleven (not oneteen)
12= twelve (not twoteen)
13= thirteen (not threeteen)
15= fifteen  (not fiveteen)

why is this??

This may be of interest to you:

"The decimal system of counting is well established in the English
names for numbers. Both the suffix -teen (as in fourteen) and the
suffix -ty (as in forty) are related to the word ten. But what about
the anomalous eleven and twelve? Why do we not say oneteen, twoteen
along the same pattern as thirteen, fourteen, fifteen? Eleven in Old
English is endleofan, and related forms in the various Germanic
languages point back to an original Germanic *ainlif, 'eleven.'
*Ainlif is composed of *ain-, 'one,' the same as our one, and the
suffix *-lif from the Germanic root *lib-, 'to adhere, remain, remain
left over.' Thus, eleven is literally 'one-left' (over, that is, past
ten), and twelve is 'two-left' (over past ten)."

http://dictionary.reference.com/search?q=eleven

Other languages also have these strange quirks with the teens. In
French, the pattern is onze = 11; douze = 12; and so on up to seize =
16; but then it's dix-sept = 17; dix-huit = 18 and dix-neuf = 19. In
Italian, also, there is a change at 17 (undici = 11; and so un up to
sedici = 16; but then diciassette = 17; diciotto = 18 & diciannove =
19). Spanish is broadly similar, BUT the change occurs at 16, rather
than 17 (once = 11; up to quince = 15; but then dieciseis = 16; up to
diecinueve = 19). In German, as in English, the change occurs at 13
(elf = 11; zwölf = 12; but then dreizehn = 13; up to neunzehn = 19.

Clearly, it's all part of a masssive plot to make learning a foreign
language even more difficult!

ONe always learns something when Pink posts a comment.  That really
sounds like they were counting on their fingers.
Perhaps another reason for eleven and twelve  - also in other
languages -  was the use of duodecimal counting - based on 12, also a
dozen, making it logical that words for 11 and 12 were used that
completed the dozen, without "looking ahead" to anticipate that the
numbering would have to continue.
This is strong in English, 12 inches to a foot, 12 pence to a
shilling, and in commerce:  a dozen eggs, etc.; a gross  - 12 dozen. 
The metric system introduced by the revolutionary French broke that
custom to some extent on the continent.

Well the old British system comes from the Romans
- everything up to twelve and then it gets normal
- probably two hands (fingers and thumbs) and then two feet

The French version is intriguing, rudimentary counting up to 16 (then
we hit dix sept), which indicates two hands (excluding thumbs) and two
feet, excluding big toes.

The climate in France is a lot gentler, and probably made feet more
visible and less prone to frostbite.

German is similar to the UK English (possibly Roman) version of two
hands and two frostbitten feet.

What is really intriguing is the way the French go totally doo-lally
at 80, quatre vingt is ... well curious. (Ok I know they got confused
at 70, but at 80 they really lost it)
It suggests that the French peasants were happy counting up to 79
while their French and English counterparts lost the plot at 12.

Without joking, I reckon that we had 'little numbers' for peasants and
more complex multiples for the merchants
- also that it was climatically driven

I am pretty sure that we got decimalization from the Arabs who
probably got it from the Greeks ... who concealed it from the Roman
barbarians.

There is (from very recent experimentation) a best seller to be
written on 'Numeric Shiatsu'
- counting ones toes is an old Yoga relaxation technique
- properly interpreted it could be a better seller than the Atkins diet

And I've just thought of some interesting follow ups

This is seriously interesting