YOU SAID:
Maria is my friend but sara is best.
INTO JAPANESE
マリアは私の友人ですが、サラは親友です。
BACK INTO ENGLISH
Maria is my friend, but Sarah is my best friend.
INTO JAPANESE
マリアは私の友人ですが、サラは私の親友です。
BACK INTO ENGLISH
Maria is my friend, but Sarah is my best friend.
You've done this before, haven't you.