* Male: Rwy'n ddeuddeg oed. (pronounced "Roo-in dhoi-doo-eg oi-ed")
* Female: Rwy'n ddeuddeg oed. (pronounced the same as the male version)
Explanation:
* Rwy'n: This is the contracted form of "Rwyf fi'n" (I am)
* deuddeg: This means twelve
* oed: This means "of age" or "years old"
The only difference between the male and female versions is the verb "Rwy'n" which changes slightly depending on the gender.