YOU SAID:

doing but it's not fun

INTO JAPANESE

やってるけど楽しいじゃない

BACK INTO ENGLISH

I'm doing it but it's not fun

INTO JAPANESE

やってるけど、面白くない

BACK INTO ENGLISH

I'm doing it but it's not funny

INTO JAPANESE

やってるけど面白くない

BACK INTO ENGLISH

I'm doing it but not funny

INTO JAPANESE

私はそれをやっているが、面白くない

BACK INTO ENGLISH

I'm doing it but not funny