YOU SAID:

I had a big frog named Denis who loved to sing

INTO JAPANESE

歌うのが大好きなデニスという大きなカエルがいました

BACK INTO ENGLISH

There was a big frog named Dennis who loved to sing.

INTO JAPANESE

歌うのが大好きなデニスという大きなカエルがいました。

BACK INTO ENGLISH

There was a big frog named Dennis who loved to sing.