YOU SAID:
I'm sorry, I am unable to speak English properly.
INTO JAPANESE
申し訳ありませんが、英語をきちんと話すことができません。
BACK INTO ENGLISH
Sorry, I can't speak English properly.
INTO JAPANESE
申し訳ありませんが、英語がきちんと話せません。
BACK INTO ENGLISH
Sorry, I can't speak English properly.
That didn't even make that much sense in English.