YOU SAID:

I dont know it may always do japanese. ok.

INTO JAPANESE

いつも日本語ができるとは知らない。 OK。

BACK INTO ENGLISH

I don't know that I can always speak Japanese. OK.

INTO JAPANESE

私はいつも日本語が話せるかどうかわかりません。 OK。

BACK INTO ENGLISH

I don't know if I can always speak Japanese. OK.

INTO JAPANESE

いつも日本語が話せるかどうかわかりません。 OK。

BACK INTO ENGLISH

I don't know if I can always speak Japanese. OK.