YOU SAID:

i would like to drink a beer with matt

INTO JAPANESE

マットでビールを飲みたいです。

BACK INTO ENGLISH

On the mat you want to drink beer.

INTO JAPANESE

マットの上は、ビールを飲みたいです。

BACK INTO ENGLISH

You want to drink beer on the mat.

INTO JAPANESE

マットの上でビールを飲みたいです。

BACK INTO ENGLISH

You want to drink beer on the mat.