YOU SAID:

tonight were going to eat milk and carrots

INTO JAPANESE

今夜はミルクとニンジンを食べるつもりでした

BACK INTO ENGLISH

I was going to eat milk and carrots tonight

INTO JAPANESE

今夜はミルクとにんじんを食べるつもりでした

BACK INTO ENGLISH

I was going to eat milk and carrots tonight