YOU SAID:

Finally I can speak fluent English

INTO JAPANESE

ついに流暢な英語を話せるようになった

BACK INTO ENGLISH

I finally became fluent in English.

INTO JAPANESE

ついに英語が流暢になりました。

BACK INTO ENGLISH

Finally, I became fluent in English.

INTO JAPANESE

ついに、私は英語が流暢になりました。

BACK INTO ENGLISH

Finally, I became fluent in English.