YOU SAID:

the coffee needs milk

INTO JAPANESE

コーヒー牛乳が必要

BACK INTO ENGLISH

Coffee milk is necessary

INTO JAPANESE

コーヒーミルクが必要

BACK INTO ENGLISH

I need coffee milk

INTO JAPANESE

コーヒーが必要なんだ。

BACK INTO ENGLISH

I need coffee.

INTO JAPANESE

コーヒーが必要なんだ。

BACK INTO ENGLISH

I need coffee.