YOU SAID:

So yesterday I was talking my friend and said who is a potato

INTO JAPANESE

だから昨日、私は私の友人に話していた、誰がジャガイモは言った

BACK INTO ENGLISH

So yesterday, I was talking to a friend of mine who is potato said

INTO JAPANESE

だから昨日言ったジャガイモは、私の友人に話していた

BACK INTO ENGLISH

So potatoes yesterday said was talking to a friend of mine

INTO JAPANESE

だから昨日言ったジャガイモは、私の友人に話していた

BACK INTO ENGLISH

So potatoes yesterday said was talking to a friend of mine