YOU SAID:

i think that you the best person ill ever know so always be my best friend

INTO JAPANESE

私はあなたが今まで知っている最高の人が私の親友であると思う

BACK INTO ENGLISH

I think the best person you ever know is my best friend

INTO JAPANESE

私はあなたが今まで知っている最高の人は私の親友だと思う

BACK INTO ENGLISH

I think the best person you ever know is my best friend