Formal:
* Rwy'n 26 oed. (Rwy'n is a formal way of saying "I am")
Informal:
* Mae gen i 26 oed. (Mae gen i means "I have" and is a more informal way of saying "I am")
* Dw i'n 26 oed. (Dw i is a casual contraction of "Dw i'n" and means "I am")
More literally:
* Mae 26 oed arna i. (This translates to "There are 26 years on me" and is a less common but accurate way of saying "I am 26")
Tips:
* Oed means "years old".
* You can also say blwydd oed which means "years old", but it is less commonly used in everyday conversation.
* Remember that Welsh is a gendered language, so you would use different pronouns depending on whether you are male or female.
Example:
* Rwy'n 26 oed. (I am 26 years old)
* Mae gen i 26 oed. (I am 26 years old)
* Dw i'n 26 oed. (I am 26 years old)