YOU SAID:
Me think me grandma is me cookie for me friend
INTO JAPANESE
おばあちゃんは私の友達のクッキーだと思う
BACK INTO ENGLISH
I think grandma is my friend's cookie
INTO JAPANESE
おばあちゃんは友達のクッキーだと思います
BACK INTO ENGLISH
I think grandma is a friend's cookie
INTO JAPANESE
おばあちゃんは友達のクッキーだと思います
BACK INTO ENGLISH
I think grandma is a friend's cookie
That didn't even make that much sense in English.