YOU SAID:
You need to brush your teeth!
INTO JAPANESE
歯を磨く必要があります!
BACK INTO ENGLISH
I need to brush my teeth!
INTO JAPANESE
歯を磨かなきゃ!
BACK INTO ENGLISH
I have to brush my teeth!
INTO JAPANESE
私は歯を磨かなければなりません!
BACK INTO ENGLISH
I have to brush my teeth!
You love that! Don't you?