YOU SAID:

i am friends with stella

INTO JAPANESE

私はステラと友達です

BACK INTO ENGLISH

I'm friends with Stella

INTO JAPANESE

ステラと友達だよ

BACK INTO ENGLISH

I'm friends with Stella.

INTO JAPANESE

ステラとは友達です。

BACK INTO ENGLISH

Stella and I are friends.

INTO JAPANESE

ステラと私は友達です。

BACK INTO ENGLISH

Stella and I are friends.