YOU SAID:
I do not know how to speak more than one language
INTO JAPANESE
私は複数の言語を話す方法がわからない
BACK INTO ENGLISH
I do not know how to speak multiple languages
INTO JAPANESE
多言語の話し方がわかりません
BACK INTO ENGLISH
I do not understand how to speak multiple languages
INTO JAPANESE
多言語の話し方がわかりません
BACK INTO ENGLISH
I do not understand how to speak multiple languages
Come on, you can do better than that.