YOU SAID:

they shouldn't be here, nor stay there

INTO JAPANESE

彼らはここにいるべきではないし、そこにいるべきでもない

BACK INTO ENGLISH

They shouldn't be here and they shouldn't be there.

INTO JAPANESE

彼らはここにいるべきではないし、そこにいるべきでもない。

BACK INTO ENGLISH

They shouldn't be here, and they shouldn't be there.

INTO JAPANESE

彼らはここにいるべきではないし、そこにいるべきでもない。

BACK INTO ENGLISH

They shouldn't be here, and they shouldn't be there.