YOU SAID:
I met my friend's mother and we sat and talked for three hours
INTO JAPANESE
友達のお母さんに会って、3時間座って話しました
BACK INTO ENGLISH
I met my friend's mother and we sat and talked for three hours.
INTO JAPANESE
私は友達の母親に会って、3時間座って話しました。
BACK INTO ENGLISH
I met my friend's mother and we sat and talked for three hours.
That didn't even make that much sense in English.