YOU SAID:
Hi, can I have large diet coke please?
INTO JAPANESE
こんにちは、大きなダイエットコークを頂けますか?
BACK INTO ENGLISH
Hello, Can you a large Diet Coke?
INTO JAPANESE
こんにちは、大きなダイエットコーラはできますか?
BACK INTO ENGLISH
Hello, Can you big diet cola?
INTO JAPANESE
こんにちは、大きなダイエットコーラはできますか?
BACK INTO ENGLISH
Hello, Can you big diet cola?
That didn't even make that much sense in English.