YOU SAID:

Hello good sir, I seem to have lost my watch. Do you happen to understand where it has gone?

INTO JAPANESE

こんにちは。時計を紛失したようです。それがどこに行ったのか理解できましたか？

BACK INTO ENGLISH

Hello. I think I lost my watch. Did you understand where it went?

INTO JAPANESE

こんにちは。時計を失くしてしまったようです。どこに行ったか理解できましたか？

BACK INTO ENGLISH

Hello. I think I lost my watch. Did you understand where you were going?

INTO JAPANESE

こんにちは。時計を失くしてしまったようです。どこへ行くのか理解できましたか？

BACK INTO ENGLISH

Hello. I think I lost my watch. Do you understand where you're going?

INTO JAPANESE

こんにちは。時計を失くしてしまったようです。どこへ行くのか理解していますか？

BACK INTO ENGLISH

Hello. I think I lost my watch. Do you understand where you're going?