YOU SAID:

I will start speaking language.

INTO JAPANESE

私は言語を話し始めます。

BACK INTO ENGLISH

I start speaking the language.

INTO JAPANESE

私はその言語を話し始めます。

BACK INTO ENGLISH

I start speaking that language.

INTO JAPANESE

私はその言語を話し始めます。

BACK INTO ENGLISH

I start speaking that language.