YOU SAID:

maybe we should be marrying our sisters, since they are close to us and know us well already.

INTO JAPANESE

姉妹は私たちの近くにいて、すでに私たちをよく知っているので、私たちは姉妹と結婚する必要があります。

BACK INTO ENGLISH

We need to marry our sisters because they are close to us and already know us well.

INTO JAPANESE

彼らは私たちの近くにいて、すでに私たちをよく知っているので、私たちは私たちの姉妹と結婚する必要があります。

BACK INTO ENGLISH

We need to marry our sisters because they are close to us and already know us well.