YOU SAID:

It takes one to know one, my friend

INTO JAPANESE

私の友人、1つを知るのに1つ必要です

BACK INTO ENGLISH

My friend, one needs one to know

INTO JAPANESE

私の友人は、1つを知る必要があります

BACK INTO ENGLISH

My friend needs to know one

INTO JAPANESE

私の友人は1つを知る必要があります

BACK INTO ENGLISH

My friend needs to know one