YOU SAID:

laughing is a fun thing to do and see

INTO JAPANESE

笑っているのは楽しいことです

BACK INTO ENGLISH

It is fun being laughing

INTO JAPANESE

笑って楽しい

BACK INTO ENGLISH

It is fun to laugh.

INTO JAPANESE

笑うのは楽しいです。

BACK INTO ENGLISH

It is fun to laugh.