Formal:
* Mae'n hwyl: This is the most literal and direct translation. It's suitable for formal situations.
Informal:
* Mae'n bleser: This means "it's a pleasure" and conveys a sense of enjoyment.
* Mae'n difyr: This means "it's entertaining" and emphasizes the enjoyment of the activity.
* Mae'n fwyn: This means "it's enjoyable" and focuses on the positive experience.
More specific:
* Mae'n hwyl iawn: This emphasizes that it's very fun.
* Mae'n rhyfeddol o hwyl: This means "it's amazingly fun" and expresses a high level of enjoyment.
Example:
* "It's fun to play football" could be translated as:
* "Mae'n hwyl chwarae pêl-droed." (Formal)
* "Mae'n fwyn chwarae pêl-droed." (Informal)
The best translation depends on the specific situation and the intended meaning.