YOU SAID:

nothing goes between them.

INTO JAPANESE

それらの間に何も行きません。

BACK INTO ENGLISH

I will not do anything between them.

INTO JAPANESE

私はそれらの間で何もしません。

BACK INTO ENGLISH

I do not do anything between them.

INTO JAPANESE

私はそれらの間に何もしません。

BACK INTO ENGLISH

I do not do anything between them.