Rwy'n iawn (pronounced "rwee'n eye-awn")
Here's a breakdown of the phrase:
* Rwy'n - This is the contracted form of "Rwyf yn", which means "I am".
* iawn - This means "fine" or "well".
Here are some other ways to say "I am fine" in Welsh:
* Mae'n iawn gen i (May'n eye-awn gen ee) - "It is fine with me"
* Dw i'n iawn (Dwee ee'n eye-awn) - "I am fine" (more informal)
* Da iawn (Dah eye-awn) - "Very well"
* Yn iawn (Yn eye-awn) - "Okay"
The best phrase to use depends on the context and your level of formality.