YOU SAID:

I must brush my teeth, then read a book, and then exercise.

INTO JAPANESE

私必要があります私は歯を磨く、本を読むし、運動。

BACK INTO ENGLISH

I need to brush my teeth, read books and exercise.

INTO JAPANESE

歯を磨かなくてはいけない。

BACK INTO ENGLISH

I have to brush my teeth.

INTO JAPANESE

歯を磨かなくてはいけない。

BACK INTO ENGLISH

I have to brush my teeth.