"Twelve"

Translation: Un deg dau

[NattKullav1]

Can we use "deg dau"? Or it always has to have "un" from 11 to 19.

[EllisVaughan]

Yes we always use "undeg" + one of the digits to form "teen" numbers. Basically it works like esperanto once you get past 19 though (i.e dudek tri= dauddeg dau).