YOU SAID:

日曜日　ともだち　約束　が　あります。

INTO JAPANESE

日曜日　ともだち　約束　が　あります。

BACK INTO ENGLISH

I have an appointment with a friend on Sunday.

INTO JAPANESE

日曜日に友達と会う約束があります。

BACK INTO ENGLISH

I have an appointment to meet up with a friend on Sunday.

INTO JAPANESE

日曜日に友達と会う約束があります。

BACK INTO ENGLISH

I have an appointment to meet up with a friend on Sunday.