YOU SAID:

when I was sixteen years old my sister in laws friends neighbour met up with my husbands brother

INTO JAPANESE

私が 16 歳のとき、義理の姉が友人の隣人になり、夫の兄弟と出会いました。

BACK INTO ENGLISH

When I was 16, my sister-in-law became a friend's neighbor and met my husband's brother.

INTO JAPANESE

私が 16 歳のとき、義姉が友人の隣人になり、夫の兄弟に会いました。

BACK INTO ENGLISH

When I was 16, my sister-in-law became a friend's neighbor and met my husband's brother.