YOU SAID:
Piper is a penguin I am friends with.
INTO JAPANESE
パイパーは私が友達なペンギンです。
BACK INTO ENGLISH
Piper is a penguin I'm a friend of.
INTO JAPANESE
パイパーは私が友達のペンギンです。
BACK INTO ENGLISH
Piper is my friend Penguin.
INTO JAPANESE
パイパーは私の友人ペンギンです。
BACK INTO ENGLISH
Piper is my friend Penguin.
You should move to Japan!