YOU SAID:

I think people should start washing their hands properly

INTO JAPANESE

私は人々が適切に手を洗い始めるべきだと思う

BACK INTO ENGLISH

I think people should start washing their hands properly.

INTO JAPANESE

私は人々が適切に手を洗い始めるべきだと思います。

BACK INTO ENGLISH

I think people should start washing their hands properly.