YOU SAID:
rebecca doesn't understand how to correctly form a sentence
INTO JAPANESE
レベッカは正しく文章を作る方法を理解していません
BACK INTO ENGLISH
Rebecca doesn't understand how to write correctly
INTO JAPANESE
レベッカは正しく書く方法を理解していません
BACK INTO ENGLISH
Rebecca doesn't understand how to write correctly
That didn't even make that much sense in English.