YOU SAID:

I would like some coffee

INTO JAPANESE

コーヒーがほしい

BACK INTO ENGLISH

I want a coffee

INTO JAPANESE

コーヒーをしたいです。

BACK INTO ENGLISH

I'd like a coffee.

INTO JAPANESE

コーヒーをください。

BACK INTO ENGLISH

Take a cup of coffee.

INTO JAPANESE

コーヒーのカップを取る。

BACK INTO ENGLISH

Take a cup of coffee.