YOU SAID:

book is sitting next to me

INTO JAPANESE

本は私の隣に座っている

BACK INTO ENGLISH

The book sits next to me.

INTO JAPANESE

その本は私の隣にあります。

BACK INTO ENGLISH

The book is next to me.

INTO JAPANESE

その本は私の隣にある。

BACK INTO ENGLISH

The book is next to me.