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?