YOU SAID:

Excuse me monsieur, where is the bathroom

INTO JAPANESE

ムッシュ、すみません、トイレはどこ

BACK INTO ENGLISH

Monsieur, excuse me, where is the toilet?

INTO JAPANESE

ムッシュ、すみません、トイレはどこですか?

BACK INTO ENGLISH

Monsieur, sorry, toilet is where?

INTO JAPANESE

ムッシュ、申し訳ありませんが、トイレはどこですか

BACK INTO ENGLISH

Monsieur, I'm sorry, but where is the toilet?

INTO JAPANESE

ムッシュー、私は申し訳ありませんが、トイレはどこですか?

BACK INTO ENGLISH

Monsieur, I'm sorry, but where is the toilet?