01 Do you understand?                  Wakari-masu-ka?
02 Yes, I do.                          Hai, wakari-masu.
03 No, I don't.                        Iie, wakari-masen.

04 Do you understand English?          Eigo ga wakari-masu-ka?

05 I understand Japanese a little.     Nihongo wa hon-no sukoshi shika
                                       shiri-masen.(wakari-masen)

06 I don't understand Japanese.        Nihongo wa wakari-masen.

07 Say again.                          Moo ichi-do onegai shimasu.

08 Please speak a little more slowly.  Moo sukoshi yukkuri hanashite 
                                       kudasai.

09 Please write down on this paper.    Kami-ni kaite kudasai.

10 Somebody understand(speak) English? Dare-ka eigo-ga wakaru hito-ga imasu-ka?

11 Do you speak English?               Eigo-o hanashi masu-ka?

12 What do you call this in Japanese?  Kore-wa nihongo-de nan-to iimasu-ka?