YOU SAID:

I so not speak Japanese.

INTO JAPANESE

私はそうない日本語を話します。

BACK INTO ENGLISH

I do not speak to Japan.

INTO JAPANESE

私は日本には話しません。

BACK INTO ENGLISH

I will not talk to Japan.

INTO JAPANESE

私は日本に話をしません。

BACK INTO ENGLISH

I will not talk to Japan.