YOU SAID:

I would like to have 10 heroins, please.

INTO JAPANESE

私は 10 の heroins をお願いしますと思います。

BACK INTO ENGLISH

I think I'll take 10 heroins.

INTO JAPANESE

私は 10 の heroins を取るだろうと思います。

BACK INTO ENGLISH

I think I'll take 10 heroins.